The sequence above is a a geometric sequence . The common ratio between them is 0.25.
16, 4, 1
The sixth term of the sequence can be found below
[tex]\begin{gathered} sixthterm=ar^{n-1} \\ \text{where} \\ r=\text{common ratio=0.25} \\ n=\text{ number of term} \\ a=first\text{ term=16} \\ \text{sixth term = 16}\times0.25^{6-1} \\ \text{sixth term=16}\times0.25^5 \\ \text{sixth term=16}\times0.0009765625 \\ \text{sixth term=}0.015625 \\ \text{sixth term}\approx0.016 \end{gathered}[/tex]