Finding the Fourth Proportional to 242,638,227.20, 363,957,340.80 and 106,589,331.20
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Solution
The fourth proportional to 242,638,227.20, 363,957,340.80 and 106,589,331.20 is: 159,883,996.80
Step by Step Solution
- Step 1: Write the proportion equation
242,638,227.20 : 363,957,340.80 = 106,589,331.20 : x - Step 2: Convert to fraction form
242,638,227.20/363,957,340.80 = 106,589,331.20/x - Step 3: Cross multiply
242,638,227.20x = 363,957,340.80 × 106,589,331.20 - Step 4: Simplify right side
242,638,227.20x = 38,793,969,541,202,472 - Step 5: Solve for x
x = 38,793,969,541,202,472/242,638,227.20 - Step 6: Final answer
x = 159,883,996.80
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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.