Finding the Fourth Proportional to 22,757,272.32, 31,378,201.92 and 18,392,862.72
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Solution
The fourth proportional to 22,757,272.32, 31,378,201.92 and 18,392,862.72 is: 25,360,462.90
Step by Step Solution
- Step 1: Write the proportion equation
22,757,272.32 : 31,378,201.92 = 18,392,862.72 : x - Step 2: Convert to fraction form
22,757,272.32/31,378,201.92 = 18,392,862.72/x - Step 3: Cross multiply
22,757,272.32x = 31,378,201.92 × 18,392,862.72 - Step 4: Simplify right side
22,757,272.32x = 577,134,960,315,000.38 - Step 5: Solve for x
x = 577,134,960,315,000.38/22,757,272.32 - Step 6: Final answer
x = 25,360,462.90
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1.5x scale
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.