Finding the Fourth Proportional to 5,120,917.74, 7,683,442.17 and 2,279,086.26
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Solution
The fourth proportional to 5,120,917.74, 7,683,442.17 and 2,279,086.26 is: 3,419,548.68
Step by Step Solution
- Step 1: Write the proportion equation
5,120,917.74 : 7,683,442.17 = 2,279,086.26 : x - Step 2: Convert to fraction form
5,120,917.74/7,683,442.17 = 2,279,086.26/x - Step 3: Cross multiply
5,120,917.74x = 7,683,442.17 × 2,279,086.26 - Step 4: Simplify right side
5,120,917.74x = 17,511,227,479,151.58 - Step 5: Solve for x
x = 17,511,227,479,151.58/5,120,917.74 - Step 6: Final answer
x = 3,419,548.68
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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.