Home / 13,836,471.20-20,698,719.60-12,156,855.20

Finding the Fourth Proportional to 13,836,471.20, 20,698,719.60 and 12,156,855.20

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Solution

The fourth proportional to 13,836,471.20, 20,698,719.60 and 12,156,855.20 is: 18,186,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836,471.20 : 20,698,719.60 = 12,156,855.20 : x
  2. Step 2: Convert to fraction form
    13,836,471.20/20,698,719.60 = 12,156,855.20/x
  3. Step 3: Cross multiply
    13,836,471.20x = 20,698,719.60 × 12,156,855.20
  4. Step 4: Simplify right side
    13,836,471.20x = 251,631,337,002,601.94
  5. Step 5: Solve for x
    x = 251,631,337,002,601.94/13,836,471.20
  6. Step 6: Final answer
    x = 18,186,091.91

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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.