Finding the Fourth Proportional to 18,451,013.70, 27,676,520.55 and 4,987,841.70
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Solution
The fourth proportional to 18,451,013.70, 27,676,520.55 and 4,987,841.70 is: 7,481,762.55
Step by Step Solution
- Step 1: Write the proportion equation
18,451,013.70 : 27,676,520.55 = 4,987,841.70 : x - Step 2: Convert to fraction form
18,451,013.70/27,676,520.55 = 4,987,841.70/x - Step 3: Cross multiply
18,451,013.70x = 27,676,520.55 × 4,987,841.70 - Step 4: Simplify right side
18,451,013.70x = 138,046,103,310,196.94 - Step 5: Solve for x
x = 138,046,103,310,196.94/18,451,013.70 - Step 6: Final answer
x = 7,481,762.55
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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.