Home / 20,453,849.11-28,226,910.68-11,162,017.91

Finding the Fourth Proportional to 20,453,849.11, 28,226,910.68 and 11,162,017.91

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Solution

The fourth proportional to 20,453,849.11, 28,226,910.68 and 11,162,017.91 is: 15,403,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453,849.11 : 28,226,910.68 = 11,162,017.91 : x
  2. Step 2: Convert to fraction form
    20,453,849.11/28,226,910.68 = 11,162,017.91/x
  3. Step 3: Cross multiply
    20,453,849.11x = 28,226,910.68 × 11,162,017.91
  4. Step 4: Simplify right side
    20,453,849.11x = 315,069,282,451,968.62
  5. Step 5: Solve for x
    x = 315,069,282,451,968.62/20,453,849.11
  6. Step 6: Final answer
    x = 15,403,911.55

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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.