Use 72 decimeter long steel wires to weld a rectangular parallelepiped frame. The ratio of length, width and height is 3:2:1. What is the volume of this rectangular parallelepiped?
用72分米长的钢丝焊成一个长方体框架，已知长、宽、高的比是3：2：1，这个长方体的体积是多少立方分米．
<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">3 + 2 + 1</gadget>
<output>6</output>

<gadget id="calculator">18 / 6</gadget>
<output>3</output>

<gadget id="calculator">3 * 6 * 9</gadget>
<output>162</output>

<result>162</result>