Finding the Fourth Proportional to 49,935,132.80, 74,958,686.40 and 38,625,718.40
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Solution
The fourth proportional to 49,935,132.80, 74,958,686.40 and 38,625,718.40 is: 57,981,884.70
Step by Step Solution
- Step 1: Write the proportion equation
49,935,132.80 : 74,958,686.40 = 38,625,718.40 : x - Step 2: Convert to fraction form
49,935,132.80/74,958,686.40 = 38,625,718.40/x - Step 3: Cross multiply
49,935,132.80x = 74,958,686.40 × 38,625,718.40 - Step 4: Simplify right side
49,935,132.80x = 2,895,333,112,520,310 - Step 5: Solve for x
x = 2,895,333,112,520,310/49,935,132.80 - Step 6: Final answer
x = 57,981,884.70
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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.