Answer :
[tex]V_1=\pi radius_1^2length_1\\\\
radius_1=3cm\\length_1=10cm\\\\
V_1=\pi3^2*10=90\pi cm^3\\\\
V_2=\pi\ (3radius_1)^2*3length_1\\
V_2=\pi 9^2*30=2430\pi\ cm^3\\\\
Ratio=\frac{V_1}{V_2}=\frac{90}{2430}=\frac{1}{27}\\\\Ratio:\ 1:27.[/tex]