Finding the Fourth Proportional to 279,918,687.73, 386,287,955.36 and 156,159,364.99
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Solution
The fourth proportional to 279,918,687.73, 386,287,955.36 and 156,159,364.99 is: 215,500,016.46
Step by Step Solution
- Step 1: Write the proportion equation
279,918,687.73 : 386,287,955.36 = 156,159,364.99 : x - Step 2: Convert to fraction form
279,918,687.73/386,287,955.36 = 156,159,364.99/x - Step 3: Cross multiply
279,918,687.73x = 386,287,955.36 × 156,159,364.99 - Step 4: Simplify right side
279,918,687.73x = 60,322,481,812,303,072 - Step 5: Solve for x
x = 60,322,481,812,303,072/279,918,687.73 - Step 6: Final answer
x = 215,500,016.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.