Finding the Fourth Proportional to 88,931,850.60, 122,729,789.46 and 49,239,381.12
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Solution
The fourth proportional to 88,931,850.60, 122,729,789.46 and 49,239,381.12 is: 67,952,469.64
Step by Step Solution
- Step 1: Write the proportion equation
88,931,850.60 : 122,729,789.46 = 49,239,381.12 : x - Step 2: Convert to fraction form
88,931,850.60/122,729,789.46 = 49,239,381.12/x - Step 3: Cross multiply
88,931,850.60x = 122,729,789.46 × 49,239,381.12 - Step 4: Simplify right side
88,931,850.60x = 6,043,138,877,998,298 - Step 5: Solve for x
x = 6,043,138,877,998,298/88,931,850.60 - Step 6: Final answer
x = 67,952,469.64
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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.