Finding the Fourth Proportional to 132,212,257.20, 198,318,385.80 and 51,433,225.20
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Solution
The fourth proportional to 132,212,257.20, 198,318,385.80 and 51,433,225.20 is: 77,149,837.80
Step by Step Solution
- Step 1: Write the proportion equation
132,212,257.20 : 198,318,385.80 = 51,433,225.20 : x - Step 2: Convert to fraction form
132,212,257.20/198,318,385.80 = 51,433,225.20/x - Step 3: Cross multiply
132,212,257.20x = 198,318,385.80 × 51,433,225.20 - Step 4: Simplify right side
132,212,257.20x = 10,200,154,198,151,884 - Step 5: Solve for x
x = 10,200,154,198,151,884/132,212,257.20 - Step 6: Final answer
x = 77,149,837.80
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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.