Home / 29,150,819.87-40,228,146.69-15,920,177.91

Finding the Fourth Proportional to 29,150,819.87, 40,228,146.69 and 15,920,177.91

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Solution

The fourth proportional to 29,150,819.87, 40,228,146.69 and 15,920,177.91 is: 21,969,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,150,819.87 : 40,228,146.69 = 15,920,177.91 : x
  2. Step 2: Convert to fraction form
    29,150,819.87/40,228,146.69 = 15,920,177.91/x
  3. Step 3: Cross multiply
    29,150,819.87x = 40,228,146.69 × 15,920,177.91
  4. Step 4: Simplify right side
    29,150,819.87x = 640,439,252,083,821.38
  5. Step 5: Solve for x
    x = 640,439,252,083,821.38/29,150,819.87
  6. Step 6: Final answer
    x = 21,969,853.85

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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.