Finding the Fourth Proportional to 86,207,643.20, 129,311,464.80 and 22,382,235.20
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Solution
The fourth proportional to 86,207,643.20, 129,311,464.80 and 22,382,235.20 is: 33,573,352.80
Step by Step Solution
- Step 1: Write the proportion equation
86,207,643.20 : 129,311,464.80 = 22,382,235.20 : x - Step 2: Convert to fraction form
86,207,643.20/129,311,464.80 = 22,382,235.20/x - Step 3: Cross multiply
86,207,643.20x = 129,311,464.80 × 22,382,235.20 - Step 4: Simplify right side
86,207,643.20x = 2,894,279,619,210,121 - Step 5: Solve for x
x = 2,894,279,619,210,121/86,207,643.20 - Step 6: Final answer
x = 33,573,352.80
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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.