Home / 61,070,778.35-91,619,453.55-20,123,249.30

Finding the Fourth Proportional to 61,070,778.35, 91,619,453.55 and 20,123,249.30

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Solution

The fourth proportional to 61,070,778.35, 91,619,453.55 and 20,123,249.30 is: 30,189,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,070,778.35 : 91,619,453.55 = 20,123,249.30 : x
  2. Step 2: Convert to fraction form
    61,070,778.35/91,619,453.55 = 20,123,249.30/x
  3. Step 3: Cross multiply
    61,070,778.35x = 91,619,453.55 × 20,123,249.30
  4. Step 4: Simplify right side
    61,070,778.35x = 1,843,681,104,516,420
  5. Step 5: Solve for x
    x = 1,843,681,104,516,420/61,070,778.35
  6. Step 6: Final answer
    x = 30,189,251.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.