Finding the Fourth Proportional to 57,894,472.87, 79,894,372.97 and 31,788,990.70
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Solution
The fourth proportional to 57,894,472.87, 79,894,372.97 and 31,788,990.70 is: 43,868,807.39
Step by Step Solution
- Step 1: Write the proportion equation
57,894,472.87 : 79,894,372.97 = 31,788,990.70 : x - Step 2: Convert to fraction form
57,894,472.87/79,894,372.97 = 31,788,990.70/x - Step 3: Cross multiply
57,894,472.87x = 79,894,372.97 × 31,788,990.70 - Step 4: Simplify right side
57,894,472.87x = 2,539,761,479,205,398 - Step 5: Solve for x
x = 2,539,761,479,205,398/57,894,472.87 - Step 6: Final answer
x = 43,868,807.39
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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.