Home / 10,979,893.20-16,469,839.80-8,145,541.20

Finding the Fourth Proportional to 10,979,893.20, 16,469,839.80 and 8,145,541.20

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Solution

The fourth proportional to 10,979,893.20, 16,469,839.80 and 8,145,541.20 is: 12,218,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979,893.20 : 16,469,839.80 = 8,145,541.20 : x
  2. Step 2: Convert to fraction form
    10,979,893.20/16,469,839.80 = 8,145,541.20/x
  3. Step 3: Cross multiply
    10,979,893.20x = 16,469,839.80 × 8,145,541.20
  4. Step 4: Simplify right side
    10,979,893.20x = 134,155,758,648,299.77
  5. Step 5: Solve for x
    x = 134,155,758,648,299.77/10,979,893.20
  6. Step 6: Final answer
    x = 12,218,311.80

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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.