Home / 20,535,206.96-28,338,919.82-11,242,620.20

Finding the Fourth Proportional to 20,535,206.96, 28,338,919.82 and 11,242,620.20

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Solution

The fourth proportional to 20,535,206.96, 28,338,919.82 and 11,242,620.20 is: 15,514,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,206.96 : 28,338,919.82 = 11,242,620.20 : x
  2. Step 2: Convert to fraction form
    20,535,206.96/28,338,919.82 = 11,242,620.20/x
  3. Step 3: Cross multiply
    20,535,206.96x = 28,338,919.82 × 11,242,620.20
  4. Step 4: Simplify right side
    20,535,206.96x = 318,603,712,414,512.38
  5. Step 5: Solve for x
    x = 318,603,712,414,512.38/20,535,206.96
  6. Step 6: Final answer
    x = 15,514,998.85

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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.