Earth boring tools having fixed blades, rotatable cutting structures, and stabilizing structures and related methods

An earth-boring tool, comprising:

• a body comprising a shank and a crown;
• a plurality of blades protruding from the crown of the body and extending at least substantially along a longitudinal length of the crown of the body, each blade extending radially outward from the crown and defining a respective radially outermost gage surface;
• a first rotatable cutting structure assembly coupled to the crown of the body and comprising:
• a first leg extending from the body of the earth-boring tool;
• and
• a first rotatable cutting structure rotatably coupled to the first leg;
• a second rotatable cutting structure assembly coupled to the crown of the body and comprising:
• a second leg extending from the body of the earth-boring tool;
• and
• a second rotatable cutting structure rotatably coupled to the second leg;
• a first stabilizing structure secured to the crown of the body between an end of the first leg opposite the first rotatable cutting structure and the shank of the body, the first stabilizing structure extending outward radially from the crown and being at least substantially circumferentially aligned with the first leg of the first rotatable cutting structure assembly along a circumference of the crown of the body, wherein the first stabilizing structure extends from at least one of the plurality of blades;
• and
• a second stabilizing structure secured to the crown of the body between an end of the second leg opposite the second rotatable cutting structure and the shank of the body, the second stabilizing structure extending outward radially from the crown and being at least substantially circumferentially aligned with the second leg of the second rotatable cutting structure assembly along the circumference of the crown of the body.

A method of forming an earth-boring tool, comprising:

• forming a body of the earth-boring tool comprising a shank and a crown;
• forming the body to have a plurality of blades protruding from the crown of the body and extending at least substantially along a longitudinal length of the crown of the body;
• coupling a rotatable cutting structure to a leg of a rotatable cutting structure assembly of the earth-boring tool;
• and
• forming at least one stabilizing structure on the crown of the body between an end of the leg opposite the rotatable cutting structure and the shank of the body, the at least one stabilizing structure extending outward radially from the crown and being at least substantially circumferentially aligned with the leg of the rotatable cutting structure assembly along a circumference of the crown of the body, wherein the at least one stabilizing structure extends from at least one of the plurality of blades.