Home / 20,542,265.46-28,347,978.78-11,374,711.38

Finding the Fourth Proportional to 20,542,265.46, 28,347,978.78 and 11,374,711.38

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Solution

The fourth proportional to 20,542,265.46, 28,347,978.78 and 11,374,711.38 is: 15,696,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542,265.46 : 28,347,978.78 = 11,374,711.38 : x
  2. Step 2: Convert to fraction form
    20,542,265.46/28,347,978.78 = 11,374,711.38/x
  3. Step 3: Cross multiply
    20,542,265.46x = 28,347,978.78 × 11,374,711.38
  4. Step 4: Simplify right side
    20,542,265.46x = 322,450,076,828,864.56
  5. Step 5: Solve for x
    x = 322,450,076,828,864.56/20,542,265.46
  6. Step 6: Final answer
    x = 15,696,909.26

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1.5x scale

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.