Finding the Fourth Proportional to 132,029,826.90, 198,044,740.35 and 126,431,981.70
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Solution
The fourth proportional to 132,029,826.90, 198,044,740.35 and 126,431,981.70 is: 189,647,972.55
Step by Step Solution
- Step 1: Write the proportion equation
132,029,826.90 : 198,044,740.35 = 126,431,981.70 : x - Step 2: Convert to fraction form
132,029,826.90/198,044,740.35 = 126,431,981.70/x - Step 3: Cross multiply
132,029,826.90x = 198,044,740.35 × 126,431,981.70 - Step 4: Simplify right side
132,029,826.90x = 25,039,188,987,712,452 - Step 5: Solve for x
x = 25,039,188,987,712,452/132,029,826.90 - Step 6: Final answer
x = 189,647,972.55
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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.