The golden ratio is also called the golden mean or golden section (Latin: sectio aurea).[3][4] Other names include extreme and mean ratio,[5] medial section, divine proportion (Latin: proportio divina),[6] divine section (Latin: sectio divina), golden proportion, golden cut,[7] and golden number.[8][9][10]
https://en.wikipedia.org/wiki/Golden_ratio
interestingly the ratio is “built in” the fibonacci numbers:
or the inverse:
