Home / 20,458,350.76-28,232,123.87-11,165,987.45

Finding the Fourth Proportional to 20,458,350.76, 28,232,123.87 and 11,165,987.45

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Solution

The fourth proportional to 20,458,350.76, 28,232,123.87 and 11,165,987.45 is: 15,408,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,350.76 : 28,232,123.87 = 11,165,987.45 : x
  2. Step 2: Convert to fraction form
    20,458,350.76/28,232,123.87 = 11,165,987.45/x
  3. Step 3: Cross multiply
    20,458,350.76x = 28,232,123.87 × 11,165,987.45
  4. Step 4: Simplify right side
    20,458,350.76x = 315,239,540,819,265.44
  5. Step 5: Solve for x
    x = 315,239,540,819,265.44/20,458,350.76
  6. Step 6: Final answer
    x = 15,408,844.27

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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.