The melting and casting plant casts a solid cylindrical aluminum block with a radius of 4dm and a height of 60cm into a solid conical aluminum block with a constant radius. What is the height of the cone?
熔铸厂把一个半径是4dm、高60cm的实心圆柱铝块，熔铸成半径不变的实心圆锥铝块，圆锥的高是多少？
<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<result>180</result>