Home / 20,119,100.72-27,765,028.79-11,300,103.69

Finding the Fourth Proportional to 20,119,100.72, 27,765,028.79 and 11,300,103.69

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Solution

The fourth proportional to 20,119,100.72, 27,765,028.79 and 11,300,103.69 is: 15,594,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119,100.72 : 27,765,028.79 = 11,300,103.69 : x
  2. Step 2: Convert to fraction form
    20,119,100.72/27,765,028.79 = 11,300,103.69/x
  3. Step 3: Cross multiply
    20,119,100.72x = 27,765,028.79 × 11,300,103.69
  4. Step 4: Simplify right side
    20,119,100.72x = 313,747,704,164,591.25
  5. Step 5: Solve for x
    x = 313,747,704,164,591.25/20,119,100.72
  6. Step 6: Final answer
    x = 15,594,519.29

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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.