Finding the Fourth Proportional to 79,730,251.20, 119,595,376.80 and 43,356,067.20
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Solution
The fourth proportional to 79,730,251.20, 119,595,376.80 and 43,356,067.20 is: 65,034,100.80
Step by Step Solution
- Step 1: Write the proportion equation
79,730,251.20 : 119,595,376.80 = 43,356,067.20 : x - Step 2: Convert to fraction form
79,730,251.20/119,595,376.80 = 43,356,067.20/x - Step 3: Cross multiply
79,730,251.20x = 119,595,376.80 × 43,356,067.20 - Step 4: Simplify right side
79,730,251.20x = 5,185,185,193,350,121 - Step 5: Solve for x
x = 5,185,185,193,350,121/79,730,251.20 - Step 6: Final answer
x = 65,034,100.80
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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.