Finding the Fourth Proportional to 10,256,122.40, 15,377,349.72 and 5,647,278.92
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Solution
The fourth proportional to 10,256,122.40, 15,377,349.72 and 5,647,278.92 is: 8,467,155.47
Step by Step Solution
- Step 1: Write the proportion equation
10,256,122.40 : 15,377,349.72 = 5,647,278.92 : x - Step 2: Convert to fraction form
10,256,122.40/15,377,349.72 = 5,647,278.92/x - Step 3: Cross multiply
10,256,122.40x = 15,377,349.72 × 5,647,278.92 - Step 4: Simplify right side
10,256,122.40x = 86,840,182,919,223.91 - Step 5: Solve for x
x = 86,840,182,919,223.91/10,256,122.40 - Step 6: Final answer
x = 8,467,155.47
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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.