Home / 13,639,217.28-18,822,027.24-7,527,645.78

Finding the Fourth Proportional to 13,639,217.28, 18,822,027.24 and 7,527,645.78

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Solution

The fourth proportional to 13,639,217.28, 18,822,027.24 and 7,527,645.78 is: 10,388,100.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639,217.28 : 18,822,027.24 = 7,527,645.78 : x
  2. Step 2: Convert to fraction form
    13,639,217.28/18,822,027.24 = 7,527,645.78/x
  3. Step 3: Cross multiply
    13,639,217.28x = 18,822,027.24 × 7,527,645.78
  4. Step 4: Simplify right side
    13,639,217.28x = 141,685,553,924,231.03
  5. Step 5: Solve for x
    x = 141,685,553,924,231.03/13,639,217.28
  6. Step 6: Final answer
    x = 10,388,100.07

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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.