Finding the Fourth Proportional to 382,677,442.13, 527,812,925.02 and 288,595,553.93
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Solution
The fourth proportional to 382,677,442.13, 527,812,925.02 and 288,595,553.93 is: 398,049,235.99
Step by Step Solution
- Step 1: Write the proportion equation
382,677,442.13 : 527,812,925.02 = 288,595,553.93 : x - Step 2: Convert to fraction form
382,677,442.13/527,812,925.02 = 288,595,553.93/x - Step 3: Cross multiply
382,677,442.13x = 527,812,925.02 × 288,595,553.93 - Step 4: Simplify right side
382,677,442.13x = 152,324,463,469,240,736 - Step 5: Solve for x
x = 152,324,463,469,240,736/382,677,442.13 - Step 6: Final answer
x = 398,049,235.99
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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.