Finding the Fourth Proportional to 132,239,620.80, 198,387,424.80 and 40,115,793.60
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Solution
The fourth proportional to 132,239,620.80, 198,387,424.80 and 40,115,793.60 is: 60,182,182.45
Step by Step Solution
- Step 1: Write the proportion equation
132,239,620.80 : 198,387,424.80 = 40,115,793.60 : x - Step 2: Convert to fraction form
132,239,620.80/198,387,424.80 = 40,115,793.60/x - Step 3: Cross multiply
132,239,620.80x = 198,387,424.80 × 40,115,793.60 - Step 4: Simplify right side
132,239,620.80x = 7,958,468,986,112,322 - Step 5: Solve for x
x = 7,958,468,986,112,322/132,239,620.80 - Step 6: Final answer
x = 60,182,182.45
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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.