A stone is submerged in a glass tank with a length of 50 cm and a width of 45 cm. When the stone is taken out of the water, the water level drops by 4 cm. What is the volume of the stone in cubic centimeters?
一块石头浸没在长50厘米，宽45厘米的玻璃水缸中，把石头从水中取出，水面下降了4厘米，这块石头的体积是多少立方厘米？
<gadget id="calculator">50 * 45 * 4</gadget>
<output>9_000</output>

<result>9_000</result>