Finding the Fourth Proportional to 25,639,337.70, 38,449,675.35 and 12,855,593.70
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Solution
The fourth proportional to 25,639,337.70, 38,449,675.35 and 12,855,593.70 is: 19,278,711.88
Step by Step Solution
- Step 1: Write the proportion equation
25,639,337.70 : 38,449,675.35 = 12,855,593.70 : x - Step 2: Convert to fraction form
25,639,337.70/38,449,675.35 = 12,855,593.70/x - Step 3: Cross multiply
25,639,337.70x = 38,449,675.35 × 12,855,593.70 - Step 4: Simplify right side
25,639,337.70x = 494,293,404,196,505.31 - Step 5: Solve for x
x = 494,293,404,196,505.31/25,639,337.70 - Step 6: Final answer
x = 19,278,711.88
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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.