Finding the Fourth Proportional to 5,215,311.08, 7,197,867.15 and 2,892,717.08
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Solution
The fourth proportional to 5,215,311.08, 7,197,867.15 and 2,892,717.08 is: 3,992,358.83
Step by Step Solution
- Step 1: Write the proportion equation
5,215,311.08 : 7,197,867.15 = 2,892,717.08 : x - Step 2: Convert to fraction form
5,215,311.08/7,197,867.15 = 2,892,717.08/x - Step 3: Cross multiply
5,215,311.08x = 7,197,867.15 × 2,892,717.08 - Step 4: Simplify right side
5,215,311.08x = 20,821,393,244,375.92 - Step 5: Solve for x
x = 20,821,393,244,375.92/5,215,311.08 - Step 6: Final answer
x = 3,992,358.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.