Home / 81,107,383.91-121,668,555.45-26,520,249.38

Finding the Fourth Proportional to 81,107,383.91, 121,668,555.45 and 26,520,249.38

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Solution

The fourth proportional to 81,107,383.91, 121,668,555.45 and 26,520,249.38 is: 39,782,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,107,383.91 : 121,668,555.45 = 26,520,249.38 : x
  2. Step 2: Convert to fraction form
    81,107,383.91/121,668,555.45 = 26,520,249.38/x
  3. Step 3: Cross multiply
    81,107,383.91x = 121,668,555.45 × 26,520,249.38
  4. Step 4: Simplify right side
    81,107,383.91x = 3,226,680,432,238,358
  5. Step 5: Solve for x
    x = 3,226,680,432,238,358/81,107,383.91
  6. Step 6: Final answer
    x = 39,782,819.72

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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.