$\begin{array}{l} \text{Gegeben:}\\\text{Kreiszahl} \qquad \pi \qquad [] \\ \text{Volumen} \qquad V \qquad [m^{3}] \\ \\ \text{Gesucht:} \\\text{Radius} \qquad r \qquad [m] \\ \\ r = ^{3} \sqrt{\frac{V\cdot 3}{4\cdot \pi }}\\ \textbf{Gegeben:} \\ \pi=1\frac{2}{5} \qquad V=3\frac{16}{113}m^{3} \qquad \\ \\ \textbf{Rechnung:} \\ r = ^{3} \sqrt{\frac{V\cdot 3}{4\cdot \pi }} \\ \pi=1\frac{2}{5}\\ V=3\frac{16}{113}m^{3}\\ r = ^{3} \sqrt{\frac{3\frac{16}{113}m^{3}\cdot 3}{4\cdot 1\frac{2}{5} }}\\\\r=1,19m \\\\ \small \begin{array}{|l|} \hline V=\\ \hline 3\frac{16}{113} m^3 \\ \hline 3,14\cdot 10^{3} dm^3 \\ \hline 3141592\frac{7}{10} cm^3 \\ \hline 3,14\cdot 10^{9} mm^3 \\ \hline 3,14\cdot 10^{3} l \\ \hline 31,4 hl \\ \hline \end{array} \small \begin{array}{|l|} \hline r=\\ \hline 1,19 m \\ \hline 11,9 dm \\ \hline 119 cm \\ \hline 1,19\cdot 10^{3} mm \\ \hline 1,19\cdot 10^{6} \mu m \\ \hline \end{array} \end{array}$