Home / 81,908,745.71-122,863,575.83-27,321,180.62

Finding the Fourth Proportional to 81,908,745.71, 122,863,575.83 and 27,321,180.62

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Solution

The fourth proportional to 81,908,745.71, 122,863,575.83 and 27,321,180.62 is: 40,981,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,908,745.71 : 122,863,575.83 = 27,321,180.62 : x
  2. Step 2: Convert to fraction form
    81,908,745.71/122,863,575.83 = 27,321,180.62/x
  3. Step 3: Cross multiply
    81,908,745.71x = 122,863,575.83 × 27,321,180.62
  4. Step 4: Simplify right side
    81,908,745.71x = 3,356,777,946,119,572.50
  5. Step 5: Solve for x
    x = 3,356,777,946,119,572.50/81,908,745.71
  6. Step 6: Final answer
    x = 40,981,923.45

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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.