Home / 76,768,390.70-115,172,753.82-27,589,209.38

Finding the Fourth Proportional to 76,768,390.70, 115,172,753.82 and 27,589,209.38

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Solution

The fourth proportional to 76,768,390.70, 115,172,753.82 and 27,589,209.38 is: 41,391,062.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,768,390.70 : 115,172,753.82 = 27,589,209.38 : x
  2. Step 2: Convert to fraction form
    76,768,390.70/115,172,753.82 = 27,589,209.38/x
  3. Step 3: Cross multiply
    76,768,390.70x = 115,172,753.82 × 27,589,209.38
  4. Step 4: Simplify right side
    76,768,390.70x = 3,177,525,220,011,174.50
  5. Step 5: Solve for x
    x = 3,177,525,220,011,174.50/76,768,390.70
  6. Step 6: Final answer
    x = 41,391,062.01

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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.