Finding the Fourth Proportional to 12,253,336.20, 18,385,909.20 and 8,651,347.20
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Solution
The fourth proportional to 12,253,336.20, 18,385,909.20 and 8,651,347.20 is: 12,981,189.90
Step by Step Solution
- Step 1: Write the proportion equation
12,253,336.20 : 18,385,909.20 = 8,651,347.20 : x - Step 2: Convert to fraction form
12,253,336.20/18,385,909.20 = 8,651,347.20/x - Step 3: Cross multiply
12,253,336.20x = 18,385,909.20 × 8,651,347.20 - Step 4: Simplify right side
12,253,336.20x = 159,062,884,076,874.22 - Step 5: Solve for x
x = 159,062,884,076,874.22/12,253,336.20 - Step 6: Final answer
x = 12,981,189.90
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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.