Finding the Fourth Proportional to 103,678,986.62, 155,517,414.76 and 59,931,909.09
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Solution
The fourth proportional to 103,678,986.62, 155,517,414.76 and 59,931,909.09 is: 89,897,247.91
Step by Step Solution
- Step 1: Write the proportion equation
103,678,986.62 : 155,517,414.76 = 59,931,909.09 : x - Step 2: Convert to fraction form
103,678,986.62/155,517,414.76 = 59,931,909.09/x - Step 3: Cross multiply
103,678,986.62x = 155,517,414.76 × 59,931,909.09 - Step 4: Simplify right side
103,678,986.62x = 9,320,455,563,158,314 - Step 5: Solve for x
x = 9,320,455,563,158,314/103,678,986.62 - Step 6: Final answer
x = 89,897,247.91
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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.