Finding the Fourth Proportional to 72,581,437.20, 108,872,155.80 and 48,394,966.80
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Solution
The fourth proportional to 72,581,437.20, 108,872,155.80 and 48,394,966.80 is: 72,592,450.20
Step by Step Solution
- Step 1: Write the proportion equation
72,581,437.20 : 108,872,155.80 = 48,394,966.80 : x - Step 2: Convert to fraction form
72,581,437.20/108,872,155.80 = 48,394,966.80/x - Step 3: Cross multiply
72,581,437.20x = 108,872,155.80 × 48,394,966.80 - Step 4: Simplify right side
72,581,437.20x = 5,268,864,365,385,427 - Step 5: Solve for x
x = 5,268,864,365,385,427/72,581,437.20 - Step 6: Final answer
x = 72,592,450.20
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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.