Home / 80,109,139.80-120,156,711.30-26,256,451.80

Finding the Fourth Proportional to 80,109,139.80, 120,156,711.30 and 26,256,451.80

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Solution

The fourth proportional to 80,109,139.80, 120,156,711.30 and 26,256,451.80 is: 39,382,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109,139.80 : 120,156,711.30 = 26,256,451.80 : x
  2. Step 2: Convert to fraction form
    80,109,139.80/120,156,711.30 = 26,256,451.80/x
  3. Step 3: Cross multiply
    80,109,139.80x = 120,156,711.30 × 26,256,451.80
  4. Step 4: Simplify right side
    80,109,139.80x = 3,154,888,898,694,965.50
  5. Step 5: Solve for x
    x = 3,154,888,898,694,965.50/80,109,139.80
  6. Step 6: Final answer
    x = 39,382,383.91

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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.