Finding the Fourth Proportional to 123,796,201.60, 170,840,306.28 and 68,047,708.60
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Solution
The fourth proportional to 123,796,201.60, 170,840,306.28 and 68,047,708.60 is: 93,906,688.80
Step by Step Solution
- Step 1: Write the proportion equation
123,796,201.60 : 170,840,306.28 = 68,047,708.60 : x - Step 2: Convert to fraction form
123,796,201.60/170,840,306.28 = 68,047,708.60/x - Step 3: Cross multiply
123,796,201.60x = 170,840,306.28 × 68,047,708.60 - Step 4: Simplify right side
123,796,201.60x = 11,625,291,378,876,190 - Step 5: Solve for x
x = 11,625,291,378,876,190/123,796,201.60 - Step 6: Final answer
x = 93,906,688.80
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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.