A cuboid-shaped steel plate is 15 decimeters long, 6 decimeters wide, and 0.2 decimeters thick. If the mass of steel per cubic decimeter is 7.8 kilograms, what is the mass of this steel plate in kilograms?
一块长方体形状的钢板长是15分米，宽是6分米，厚是0.2分米．如果每立方分米的钢材质量是7.8千克，这块钢板的质量是多少千克？
<gadget id="calculator">15 * 6 * 0.2 * 7.8</gadget>
<output>140.4</output>

<result>140.4</result>