Finding the Fourth Proportional to 124,517,449.87, 171,832,287.12 and 68,765,229.31
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Solution
The fourth proportional to 124,517,449.87, 171,832,287.12 and 68,765,229.31 is: 94,895,025.87
Step by Step Solution
- Step 1: Write the proportion equation
124,517,449.87 : 171,832,287.12 = 68,765,229.31 : x - Step 2: Convert to fraction form
124,517,449.87/171,832,287.12 = 68,765,229.31/x - Step 3: Cross multiply
124,517,449.87x = 171,832,287.12 × 68,765,229.31 - Step 4: Simplify right side
124,517,449.87x = 11,816,086,626,668,560 - Step 5: Solve for x
x = 11,816,086,626,668,560/124,517,449.87 - Step 6: Final answer
x = 94,895,025.87
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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.