Home / 80,572,827.20-120,859,240.80-26,720,139.20

Finding the Fourth Proportional to 80,572,827.20, 120,859,240.80 and 26,720,139.20

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Solution

The fourth proportional to 80,572,827.20, 120,859,240.80 and 26,720,139.20 is: 40,080,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,572,827.20 : 120,859,240.80 = 26,720,139.20 : x
  2. Step 2: Convert to fraction form
    80,572,827.20/120,859,240.80 = 26,720,139.20/x
  3. Step 3: Cross multiply
    80,572,827.20x = 120,859,240.80 × 26,720,139.20
  4. Step 4: Simplify right side
    80,572,827.20x = 3,229,375,737,782,319
  5. Step 5: Solve for x
    x = 3,229,375,737,782,319/80,572,827.20
  6. Step 6: Final answer
    x = 40,080,208.80

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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.