The fuel tank of a car, measured from the inside, has a bottom area of 15dm**2 and a depth of 40cm. If the price of gasoline is 8.09 yuan per liter, how much does it cost to fill up a tank of gas for this car?
一辆汽车的油箱，从里面量，底面积是15dm**2，深40cm．如果每升汽油价格是8.09元，给这辆汽车加满一箱油需要多少钱？
<gadget id="calculator">40 / 10</gadget>
<output>4</output>

<gadget id="calculator">15 * 4 * 8.09</gadget>
<output>485.4</output>

<result>485.4</result>