Finding the Fourth Proportional to 16,489,414.80, 24,734,122.20 and 12,397,319.10
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Solution
The fourth proportional to 16,489,414.80, 24,734,122.20 and 12,397,319.10 is: 18,595,978.65
Step by Step Solution
- Step 1: Write the proportion equation
16,489,414.80 : 24,734,122.20 = 12,397,319.10 : x - Step 2: Convert to fraction form
16,489,414.80/24,734,122.20 = 12,397,319.10/x - Step 3: Cross multiply
16,489,414.80x = 24,734,122.20 × 12,397,319.10 - Step 4: Simplify right side
16,489,414.80x = 306,636,805,571,794 - Step 5: Solve for x
x = 306,636,805,571,794/16,489,414.80 - Step 6: Final answer
x = 18,595,978.65
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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.