Finding the Fourth Proportional to 87,925,517.28, 121,351,738.44 and 48,779,905.38
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Solution
The fourth proportional to 87,925,517.28, 121,351,738.44 and 48,779,905.38 is: 67,324,327.48
Step by Step Solution
- Step 1: Write the proportion equation
87,925,517.28 : 121,351,738.44 = 48,779,905.38 : x - Step 2: Convert to fraction form
87,925,517.28/121,351,738.44 = 48,779,905.38/x - Step 3: Cross multiply
87,925,517.28x = 121,351,738.44 × 48,779,905.38 - Step 4: Simplify right side
87,925,517.28x = 5,919,526,318,801,709 - Step 5: Solve for x
x = 5,919,526,318,801,709/87,925,517.28 - Step 6: Final answer
x = 67,324,327.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.