Home / 20,391,610.70-30,587,416.05-12,329,453.90

Finding the Fourth Proportional to 20,391,610.70, 30,587,416.05 and 12,329,453.90

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Solution

The fourth proportional to 20,391,610.70, 30,587,416.05 and 12,329,453.90 is: 18,494,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,610.70 : 30,587,416.05 = 12,329,453.90 : x
  2. Step 2: Convert to fraction form
    20,391,610.70/30,587,416.05 = 12,329,453.90/x
  3. Step 3: Cross multiply
    20,391,610.70x = 30,587,416.05 × 12,329,453.90
  4. Step 4: Simplify right side
    20,391,610.70x = 377,126,136,108,595.12
  5. Step 5: Solve for x
    x = 377,126,136,108,595.12/20,391,610.70
  6. Step 6: Final answer
    x = 18,494,180.85

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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.