Home / 20,576,939.60-28,394,792.52-11,409,242.96

Finding the Fourth Proportional to 20,576,939.60, 28,394,792.52 and 11,409,242.96

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Solution

The fourth proportional to 20,576,939.60, 28,394,792.52 and 11,409,242.96 is: 15,743,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576,939.60 : 28,394,792.52 = 11,409,242.96 : x
  2. Step 2: Convert to fraction form
    20,576,939.60/28,394,792.52 = 11,409,242.96/x
  3. Step 3: Cross multiply
    20,576,939.60x = 28,394,792.52 × 11,409,242.96
  4. Step 4: Simplify right side
    20,576,939.60x = 323,963,086,659,470.69
  5. Step 5: Solve for x
    x = 323,963,086,659,470.69/20,576,939.60
  6. Step 6: Final answer
    x = 15,743,987.83

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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.