Finding the Fourth Proportional to 18,125,613.40, 27,188,420.10 and 10,959,251.80
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Solution
The fourth proportional to 18,125,613.40, 27,188,420.10 and 10,959,251.80 is: 16,438,877.70
Step by Step Solution
- Step 1: Write the proportion equation
18,125,613.40 : 27,188,420.10 = 10,959,251.80 : x - Step 2: Convert to fraction form
18,125,613.40/27,188,420.10 = 10,959,251.80/x - Step 3: Cross multiply
18,125,613.40x = 27,188,420.10 × 10,959,251.80 - Step 4: Simplify right side
18,125,613.40x = 297,964,741,920,081.19 - Step 5: Solve for x
x = 297,964,741,920,081.19/18,125,613.40 - Step 6: Final answer
x = 16,438,877.70
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1.5x scale
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.