Finding the Fourth Proportional to 4,123,780.07, 5,690,543.05 and 2,288,121.99
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Solution
The fourth proportional to 4,123,780.07, 5,690,543.05 and 2,288,121.99 is: 3,157,456.62
Step by Step Solution
- Step 1: Write the proportion equation
4,123,780.07 : 5,690,543.05 = 2,288,121.99 : x - Step 2: Convert to fraction form
4,123,780.07/5,690,543.05 = 2,288,121.99/x - Step 3: Cross multiply
4,123,780.07x = 5,690,543.05 × 2,288,121.99 - Step 4: Simplify right side
4,123,780.07x = 13,020,656,669,267.29 - Step 5: Solve for x
x = 13,020,656,669,267.29/4,123,780.07 - Step 6: Final answer
x = 3,157,456.62
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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.