Finding the Fourth Proportional to 481,534,921.12, 664,522,096.14 and 261,519,921.76
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Solution
The fourth proportional to 481,534,921.12, 664,522,096.14 and 261,519,921.76 is: 360,899,612.82
Step by Step Solution
- Step 1: Write the proportion equation
481,534,921.12 : 664,522,096.14 = 261,519,921.76 : x - Step 2: Convert to fraction form
481,534,921.12/664,522,096.14 = 261,519,921.76/x - Step 3: Cross multiply
481,534,921.12x = 664,522,096.14 × 261,519,921.76 - Step 4: Simplify right side
481,534,921.12x = 173,785,766,590,324,000 - Step 5: Solve for x
x = 173,785,766,590,324,000/481,534,921.12 - Step 6: Final answer
x = 360,899,612.82
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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.