Home / 20,305,867.50-28,022,098.77-11,138,533.74

Finding the Fourth Proportional to 20,305,867.50, 28,022,098.77 and 11,138,533.74

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Solution

The fourth proportional to 20,305,867.50, 28,022,098.77 and 11,138,533.74 is: 15,371,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305,867.50 : 28,022,098.77 = 11,138,533.74 : x
  2. Step 2: Convert to fraction form
    20,305,867.50/28,022,098.77 = 11,138,533.74/x
  3. Step 3: Cross multiply
    20,305,867.50x = 28,022,098.77 × 11,138,533.74
  4. Step 4: Simplify right side
    20,305,867.50x = 312,125,092,615,257.50
  5. Step 5: Solve for x
    x = 312,125,092,615,257.50/20,305,867.50
  6. Step 6: Final answer
    x = 15,371,177.45

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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.