Home / 81,936,453.70-122,904,680.55-21,352,179.70

Finding the Fourth Proportional to 81,936,453.70, 122,904,680.55 and 21,352,179.70

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Solution

The fourth proportional to 81,936,453.70, 122,904,680.55 and 21,352,179.70 is: 32,028,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,936,453.70 : 122,904,680.55 = 21,352,179.70 : x
  2. Step 2: Convert to fraction form
    81,936,453.70/122,904,680.55 = 21,352,179.70/x
  3. Step 3: Cross multiply
    81,936,453.70x = 122,904,680.55 × 21,352,179.70
  4. Step 4: Simplify right side
    81,936,453.70x = 2,624,282,825,074,694.50
  5. Step 5: Solve for x
    x = 2,624,282,825,074,694.50/81,936,453.70
  6. Step 6: Final answer
    x = 32,028,269.55

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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.