Finding the Fourth Proportional to 3,881,654.20, 5,356,704.76 and 2,251,029.74
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Solution
The fourth proportional to 3,881,654.20, 5,356,704.76 and 2,251,029.74 is: 3,106,433.77
Step by Step Solution
- Step 1: Write the proportion equation
3,881,654.20 : 5,356,704.76 = 2,251,029.74 : x - Step 2: Convert to fraction form
3,881,654.20/5,356,704.76 = 2,251,029.74/x - Step 3: Cross multiply
3,881,654.20x = 5,356,704.76 × 2,251,029.74 - Step 4: Simplify right side
3,881,654.20x = 12,058,101,690,748.46 - Step 5: Solve for x
x = 12,058,101,690,748.46/3,881,654.20 - Step 6: Final answer
x = 3,106,433.77
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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.