Home / 10,780,144.20-16,170,216.30-4,387,105.80

Finding the Fourth Proportional to 10,780,144.20, 16,170,216.30 and 4,387,105.80

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Solution

The fourth proportional to 10,780,144.20, 16,170,216.30 and 4,387,105.80 is: 6,580,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,144.20 : 16,170,216.30 = 4,387,105.80 : x
  2. Step 2: Convert to fraction form
    10,780,144.20/16,170,216.30 = 4,387,105.80/x
  3. Step 3: Cross multiply
    10,780,144.20x = 16,170,216.30 × 4,387,105.80
  4. Step 4: Simplify right side
    10,780,144.20x = 70,940,449,716,984.55
  5. Step 5: Solve for x
    x = 70,940,449,716,984.55/10,780,144.20
  6. Step 6: Final answer
    x = 6,580,658.70

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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.