Home / 79,965,235.86-119,947,854.15-19,380,961.86

Finding the Fourth Proportional to 79,965,235.86, 119,947,854.15 and 19,380,961.86

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Solution

The fourth proportional to 79,965,235.86, 119,947,854.15 and 19,380,961.86 is: 29,071,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,965,235.86 : 119,947,854.15 = 19,380,961.86 : x
  2. Step 2: Convert to fraction form
    79,965,235.86/119,947,854.15 = 19,380,961.86/x
  3. Step 3: Cross multiply
    79,965,235.86x = 119,947,854.15 × 19,380,961.86
  4. Step 4: Simplify right side
    79,965,235.86x = 2,324,704,786,469,993
  5. Step 5: Solve for x
    x = 2,324,704,786,469,993/79,965,235.86
  6. Step 6: Final answer
    x = 29,071,442.88

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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.