Home / 10,491,763.50-15,720,246.80-6,380,649.61

Finding the Fourth Proportional to 10,491,763.50, 15,720,246.80 and 6,380,649.61

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Solution

The fourth proportional to 10,491,763.50, 15,720,246.80 and 6,380,649.61 is: 9,560,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491,763.50 : 15,720,246.80 = 6,380,649.61 : x
  2. Step 2: Convert to fraction form
    10,491,763.50/15,720,246.80 = 6,380,649.61/x
  3. Step 3: Cross multiply
    10,491,763.50x = 15,720,246.80 × 6,380,649.61
  4. Step 4: Simplify right side
    10,491,763.50x = 100,305,386,542,319.88
  5. Step 5: Solve for x
    x = 100,305,386,542,319.88/10,491,763.50
  6. Step 6: Final answer
    x = 9,560,393.40

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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.