Finding the Fourth Proportional to 86,324,276.80, 129,486,415.20 and 82,342,964.80
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Solution
The fourth proportional to 86,324,276.80, 129,486,415.20 and 82,342,964.80 is: 123,514,447.20
Step by Step Solution
- Step 1: Write the proportion equation
86,324,276.80 : 129,486,415.20 = 82,342,964.80 : x - Step 2: Convert to fraction form
86,324,276.80/129,486,415.20 = 82,342,964.80/x - Step 3: Cross multiply
86,324,276.80x = 129,486,415.20 × 82,342,964.80 - Step 4: Simplify right side
86,324,276.80x = 10,662,295,328,891,784 - Step 5: Solve for x
x = 10,662,295,328,891,784/86,324,276.80 - Step 6: Final answer
x = 123,514,447.20
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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.