Home / 20,616,590.11-28,455,849.42-11,801,151.57

Finding the Fourth Proportional to 20,616,590.11, 28,455,849.42 and 11,801,151.57

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Solution

The fourth proportional to 20,616,590.11, 28,455,849.42 and 11,801,151.57 is: 16,288,425.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,590.11 : 28,455,849.42 = 11,801,151.57 : x
  2. Step 2: Convert to fraction form
    20,616,590.11/28,455,849.42 = 11,801,151.57/x
  3. Step 3: Cross multiply
    20,616,590.11x = 28,455,849.42 × 11,801,151.57
  4. Step 4: Simplify right side
    20,616,590.11x = 335,811,791,987,377
  5. Step 5: Solve for x
    x = 335,811,791,987,377/20,616,590.11
  6. Step 6: Final answer
    x = 16,288,425.50

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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.