Home / 13,469,491.50-20,209,256.73-8,082,008.70

Finding the Fourth Proportional to 13,469,491.50, 20,209,256.73 and 8,082,008.70

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Solution

The fourth proportional to 13,469,491.50, 20,209,256.73 and 8,082,008.70 is: 12,126,024.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469,491.50 : 20,209,256.73 = 8,082,008.70 : x
  2. Step 2: Convert to fraction form
    13,469,491.50/20,209,256.73 = 8,082,008.70/x
  3. Step 3: Cross multiply
    13,469,491.50x = 20,209,256.73 × 8,082,008.70
  4. Step 4: Simplify right side
    13,469,491.50x = 163,331,388,712,393.56
  5. Step 5: Solve for x
    x = 163,331,388,712,393.56/13,469,491.50
  6. Step 6: Final answer
    x = 12,126,024.85

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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.