Finding the Fourth Proportional to 38,221,753.20, 57,354,748.20 and 14,289,644.40
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Solution
The fourth proportional to 38,221,753.20, 57,354,748.20 and 14,289,644.40 is: 21,442,735.82
Step by Step Solution
- Step 1: Write the proportion equation
38,221,753.20 : 57,354,748.20 = 14,289,644.40 : x - Step 2: Convert to fraction form
38,221,753.20/57,354,748.20 = 14,289,644.40/x - Step 3: Cross multiply
38,221,753.20x = 57,354,748.20 × 14,289,644.40 - Step 4: Simplify right side
38,221,753.20x = 819,578,956,429,540.12 - Step 5: Solve for x
x = 819,578,956,429,540.12/38,221,753.20 - Step 6: Final answer
x = 21,442,735.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.