Home / 13,664,872.28-18,857,520.89-7,469,944.63

Finding the Fourth Proportional to 13,664,872.28, 18,857,520.89 and 7,469,944.63

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Solution

The fourth proportional to 13,664,872.28, 18,857,520.89 and 7,469,944.63 is: 10,308,522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664,872.28 : 18,857,520.89 = 7,469,944.63 : x
  2. Step 2: Convert to fraction form
    13,664,872.28/18,857,520.89 = 7,469,944.63/x
  3. Step 3: Cross multiply
    13,664,872.28x = 18,857,520.89 × 7,469,944.63
  4. Step 4: Simplify right side
    13,664,872.28x = 140,864,636,822,874.81
  5. Step 5: Solve for x
    x = 140,864,636,822,874.81/13,664,872.28
  6. Step 6: Final answer
    x = 10,308,522.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.