Finding the Fourth Proportional to 16,381,883.70, 24,572,825.55 and 15,372,145.80
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Solution
The fourth proportional to 16,381,883.70, 24,572,825.55 and 15,372,145.80 is: 23,058,218.70
Step by Step Solution
- Step 1: Write the proportion equation
16,381,883.70 : 24,572,825.55 = 15,372,145.80 : x - Step 2: Convert to fraction form
16,381,883.70/24,572,825.55 = 15,372,145.80/x - Step 3: Cross multiply
16,381,883.70x = 24,572,825.55 × 15,372,145.80 - Step 4: Simplify right side
16,381,883.70x = 377,737,057,072,565.25 - Step 5: Solve for x
x = 377,737,057,072,565.25/16,381,883.70 - Step 6: Final answer
x = 23,058,218.70
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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.