Home / 18,109,035.28-27,162,929.20-5,155,265.56

Finding the Fourth Proportional to 18,109,035.28, 27,162,929.20 and 5,155,265.56

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Solution

The fourth proportional to 18,109,035.28, 27,162,929.20 and 5,155,265.56 is: 7,732,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109,035.28 : 27,162,929.20 = 5,155,265.56 : x
  2. Step 2: Convert to fraction form
    18,109,035.28/27,162,929.20 = 5,155,265.56/x
  3. Step 3: Cross multiply
    18,109,035.28x = 27,162,929.20 × 5,155,265.56
  4. Step 4: Simplify right side
    18,109,035.28x = 140,032,113,413,478.34
  5. Step 5: Solve for x
    x = 140,032,113,413,478.34/18,109,035.28
  6. Step 6: Final answer
    x = 7,732,720.78

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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.