Home / 20,535,076.74-28,338,629.86-11,367,872.58

Finding the Fourth Proportional to 20,535,076.74, 28,338,629.86 and 11,367,872.58

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Solution

The fourth proportional to 20,535,076.74, 28,338,629.86 and 11,367,872.58 is: 15,687,788.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,076.74 : 28,338,629.86 = 11,367,872.58 : x
  2. Step 2: Convert to fraction form
    20,535,076.74/28,338,629.86 = 11,367,872.58/x
  3. Step 3: Cross multiply
    20,535,076.74x = 28,338,629.86 × 11,367,872.58
  4. Step 4: Simplify right side
    20,535,076.74x = 322,149,933,340,263.25
  5. Step 5: Solve for x
    x = 322,149,933,340,263.25/20,535,076.74
  6. Step 6: Final answer
    x = 15,687,788.14

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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.