We are told in scriptures that 1/3 of the host of heaven followed Lucifer in the pre-mortal war in heaven. That generally is believed to be a literal 33%, but there is another view that resonates more with me.
There is an interpretation of ancient numerology that believes 1/3 is
more accurately translated as "a third part" and means "an unspecified minority" - and 2/3
means "an unspecified majority". Along those lines, "none" and "all" would be written as 0/3 and 3/3 (although they are never stated that way).
That changes the whole math of
salvation dramatically - and in a way that is very important and
foundational for my view of eternity. In that light, 1/3 can mean a few
billion, but it also can mean a dozen or so and anything between - and I FAR prefer that
ambiguity to the assumption of a literal 33%.