Finding the Fourth Proportional to 8,120,425.92, 12,180,638.94 and 2,729,076.42
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Solution
The fourth proportional to 8,120,425.92, 12,180,638.94 and 2,729,076.42 is: 4,093,614.65
Step by Step Solution
- Step 1: Write the proportion equation
8,120,425.92 : 12,180,638.94 = 2,729,076.42 : x - Step 2: Convert to fraction form
8,120,425.92/12,180,638.94 = 2,729,076.42/x - Step 3: Cross multiply
8,120,425.92x = 12,180,638.94 × 2,729,076.42 - Step 4: Simplify right side
8,120,425.92x = 33,241,894,511,687.79 - Step 5: Solve for x
x = 33,241,894,511,687.79/8,120,425.92 - Step 6: Final answer
x = 4,093,614.65
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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.