Home / 12,339,408.70-18,501,337.05-5,155,939.90

Finding the Fourth Proportional to 12,339,408.70, 18,501,337.05 and 5,155,939.90

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Solution

The fourth proportional to 12,339,408.70, 18,501,337.05 and 5,155,939.90 is: 7,730,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339,408.70 : 18,501,337.05 = 5,155,939.90 : x
  2. Step 2: Convert to fraction form
    12,339,408.70/18,501,337.05 = 5,155,939.90/x
  3. Step 3: Cross multiply
    12,339,408.70x = 18,501,337.05 × 5,155,939.90
  4. Step 4: Simplify right side
    12,339,408.70x = 95,391,781,899,443.31
  5. Step 5: Solve for x
    x = 95,391,781,899,443.31/12,339,408.70
  6. Step 6: Final answer
    x = 7,730,660.70

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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.