Finding the Fourth Proportional to 3,897,367.43, 5,378,149.46 and 2,154,936.24
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Solution
The fourth proportional to 3,897,367.43, 5,378,149.46 and 2,154,936.24 is: 2,973,691.70
Step by Step Solution
- Step 1: Write the proportion equation
3,897,367.43 : 5,378,149.46 = 2,154,936.24 : x - Step 2: Convert to fraction form
3,897,367.43/5,378,149.46 = 2,154,936.24/x - Step 3: Cross multiply
3,897,367.43x = 5,378,149.46 × 2,154,936.24 - Step 4: Simplify right side
3,897,367.43x = 11,589,569,164,715.75 - Step 5: Solve for x
x = 11,589,569,164,715.75/3,897,367.43 - Step 6: Final answer
x = 2,973,691.70
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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.