Home / 81,654,617.85-122,481,926.78-54,444,838.65

Finding the Fourth Proportional to 81,654,617.85, 122,481,926.78 and 54,444,838.65

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Solution

The fourth proportional to 81,654,617.85, 122,481,926.78 and 54,444,838.65 is: 81,667,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,654,617.85 : 122,481,926.78 = 54,444,838.65 : x
  2. Step 2: Convert to fraction form
    81,654,617.85/122,481,926.78 = 54,444,838.65/x
  3. Step 3: Cross multiply
    81,654,617.85x = 122,481,926.78 × 54,444,838.65
  4. Step 4: Simplify right side
    81,654,617.85x = 6,668,508,740,805,990
  5. Step 5: Solve for x
    x = 6,668,508,740,805,990/81,654,617.85
  6. Step 6: Final answer
    x = 81,667,257.98

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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.