Finding the Fourth Proportional to 811,541,690,021.20, 1,119,949,402,493.70 and 477,471,268,921.45
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Solution
The fourth proportional to 811,541,690,021.20, 1,119,949,402,493.70 and 477,471,268,921.45 is: 658,923,218,500.97
Step by Step Solution
- Step 1: Write the proportion equation
811,541,690,021.20 : 1,119,949,402,493.70 = 477,471,268,921.45 : x - Step 2: Convert to fraction form
811,541,690,021.20/1,119,949,402,493.70 = 477,471,268,921.45/x - Step 3: Cross multiply
811,541,690,021.20x = 1,119,949,402,493.70 × 477,471,268,921.45 - Step 4: Simplify right side
811,541,690,021.20x = 534,743,662,336,486,691,307,520 - Step 5: Solve for x
x = 534,743,662,336,486,691,307,520/811,541,690,021.20 - Step 6: Final answer
x = 658,923,218,500.97
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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.