Finding the Fourth Proportional to 103,678,986.24, 155,517,414.21 and 59,931,908.70
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Solution
The fourth proportional to 103,678,986.24, 155,517,414.21 and 59,931,908.70 is: 89,897,247.34
Step by Step Solution
- Step 1: Write the proportion equation
103,678,986.24 : 155,517,414.21 = 59,931,908.70 : x - Step 2: Convert to fraction form
103,678,986.24/155,517,414.21 = 59,931,908.70/x - Step 3: Cross multiply
103,678,986.24x = 155,517,414.21 × 59,931,908.70 - Step 4: Simplify right side
103,678,986.24x = 9,320,455,469,693,804 - Step 5: Solve for x
x = 9,320,455,469,693,804/103,678,986.24 - Step 6: Final answer
x = 89,897,247.34
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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.