The product of three consecutive terms of at G.P is 64 and the first term is four time the third. find the terms

Answer 1

t * r t * r^2 t = 64
t = 4 * r^2 t
so
r^2 = 1/4
r = 1/2

t + (1/2)t + (1/4) t = 64
etc

Answer 2

r = 1/2

t * t/2 * t/4 = 64
t^3/8 = 64
...