Home / 20,959,865.88-28,924,410.78-11,667,288.60

Finding the Fourth Proportional to 20,959,865.88, 28,924,410.78 and 11,667,288.60

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Solution

The fourth proportional to 20,959,865.88, 28,924,410.78 and 11,667,288.60 is: 16,100,744.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959,865.88 : 28,924,410.78 = 11,667,288.60 : x
  2. Step 2: Convert to fraction form
    20,959,865.88/28,924,410.78 = 11,667,288.60/x
  3. Step 3: Cross multiply
    20,959,865.88x = 28,924,410.78 × 11,667,288.60
  4. Step 4: Simplify right side
    20,959,865.88x = 337,469,448,155,211.12
  5. Step 5: Solve for x
    x = 337,469,448,155,211.12/20,959,865.88
  6. Step 6: Final answer
    x = 16,100,744.64

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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.