Home / 12,481,349.10-18,722,023.65-8,226,321.90

Finding the Fourth Proportional to 12,481,349.10, 18,722,023.65 and 8,226,321.90

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Solution

The fourth proportional to 12,481,349.10, 18,722,023.65 and 8,226,321.90 is: 12,339,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,349.10 : 18,722,023.65 = 8,226,321.90 : x
  2. Step 2: Convert to fraction form
    12,481,349.10/18,722,023.65 = 8,226,321.90/x
  3. Step 3: Cross multiply
    12,481,349.10x = 18,722,023.65 × 8,226,321.90
  4. Step 4: Simplify right side
    12,481,349.10x = 154,013,393,164,312.94
  5. Step 5: Solve for x
    x = 154,013,393,164,312.94/12,481,349.10
  6. Step 6: Final answer
    x = 12,339,482.85

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1.5x scale

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.