A cuboid whose length, width, and height are 8 decimeters, 6.28 decimeters, and 5 decimeters is forged into a cone with a radius of 4 decimeters. What is the height of the cone?
把一块长、宽、高分别是8分米、6.28分米、5分米的长方体，锻造成一个半径4分米的圆锥体，这个圆锥的高是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<gadget id="calculator">5 / (1/3) / 50.24</gadget>
<output>0.298567</output>

<gadget id="calculator">8 * 6.28 * 0.298567</gadget>
<output>15.000006</output>

<result>15.000006</result>