Finding the Fourth Proportional to 90,252,727.47, 124,665,595.36 and 74,634,836.94
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Solution
The fourth proportional to 90,252,727.47, 124,665,595.36 and 74,634,836.94 is: 103,092,689.19
Step by Step Solution
- Step 1: Write the proportion equation
90,252,727.47 : 124,665,595.36 = 74,634,836.94 : x - Step 2: Convert to fraction form
90,252,727.47/124,665,595.36 = 74,634,836.94/x - Step 3: Cross multiply
90,252,727.47x = 124,665,595.36 × 74,634,836.94 - Step 4: Simplify right side
90,252,727.47x = 9,304,396,381,535,034 - Step 5: Solve for x
x = 9,304,396,381,535,034/90,252,727.47 - Step 6: Final answer
x = 103,092,689.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.