Finding the Fourth Proportional to 215,330,467.20, 322,995,700.80 and 106,207,915.20
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Solution
The fourth proportional to 215,330,467.20, 322,995,700.80 and 106,207,915.20 is: 159,311,872.80
Step by Step Solution
- Step 1: Write the proportion equation
215,330,467.20 : 322,995,700.80 = 106,207,915.20 : x - Step 2: Convert to fraction form
215,330,467.20/322,995,700.80 = 106,207,915.20/x - Step 3: Cross multiply
215,330,467.20x = 322,995,700.80 × 106,207,915.20 - Step 4: Simplify right side
215,330,467.20x = 34,304,700,000,530,976 - Step 5: Solve for x
x = 34,304,700,000,530,976/215,330,467.20 - Step 6: Final answer
x = 159,311,872.80
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1.5x scale
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.