Home / 13,836,138.80-20,763,065.55-8,078,861.30

Finding the Fourth Proportional to 13,836,138.80, 20,763,065.55 and 8,078,861.30

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Solution

The fourth proportional to 13,836,138.80, 20,763,065.55 and 8,078,861.30 is: 12,123,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836,138.80 : 20,763,065.55 = 8,078,861.30 : x
  2. Step 2: Convert to fraction form
    13,836,138.80/20,763,065.55 = 8,078,861.30/x
  3. Step 3: Cross multiply
    13,836,138.80x = 20,763,065.55 × 8,078,861.30
  4. Step 4: Simplify right side
    13,836,138.80x = 167,741,926,741,258.22
  5. Step 5: Solve for x
    x = 167,741,926,741,258.22/13,836,138.80
  6. Step 6: Final answer
    x = 12,123,463.72

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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.