Finding the Fourth Proportional to 5,435,821.18, 7,501,242.03 and 2,988,414.49
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Solution
The fourth proportional to 5,435,821.18, 7,501,242.03 and 2,988,414.49 is: 4,123,906.88
Step by Step Solution
- Step 1: Write the proportion equation
5,435,821.18 : 7,501,242.03 = 2,988,414.49 : x - Step 2: Convert to fraction form
5,435,821.18/7,501,242.03 = 2,988,414.49/x - Step 3: Cross multiply
5,435,821.18x = 7,501,242.03 × 2,988,414.49 - Step 4: Simplify right side
5,435,821.18x = 22,416,820,375,449.02 - Step 5: Solve for x
x = 22,416,820,375,449.02/5,435,821.18 - Step 6: Final answer
x = 4,123,906.88
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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.