Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[\frac{7.8\times 4\times 3.14\times 0.2}{3}\]
Simplify \(7.8\times 4\) to \(31.2\).
\[\frac{31.2\times 3.14\times 0.2}{3}\]
Simplify \(31.2\times 3.14\) to \(97.968\).
\[\frac{97.968\times 0.2}{3}\]
Simplify \(97.968\times 0.2\) to \(19.5936\).
\[\frac{19.5936}{3}\]
Simplify.
\[6.5312\]
6.5312
