Finding the Fourth Proportional to 279,165,875.19, 418,554,896.94 and 123,634,930.47
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Solution
The fourth proportional to 279,165,875.19, 418,554,896.94 and 123,634,930.47 is: 185,366,515.68
Step by Step Solution
- Step 1: Write the proportion equation
279,165,875.19 : 418,554,896.94 = 123,634,930.47 : x - Step 2: Convert to fraction form
279,165,875.19/418,554,896.94 = 123,634,930.47/x - Step 3: Cross multiply
279,165,875.19x = 418,554,896.94 × 123,634,930.47 - Step 4: Simplify right side
279,165,875.19x = 51,748,005,581,054,912 - Step 5: Solve for x
x = 51,748,005,581,054,912/279,165,875.19 - Step 6: Final answer
x = 185,366,515.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.