Home / 81,449,206.70-122,173,810.05-73,229,585.90

Finding the Fourth Proportional to 81,449,206.70, 122,173,810.05 and 73,229,585.90

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Solution

The fourth proportional to 81,449,206.70, 122,173,810.05 and 73,229,585.90 is: 109,844,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,449,206.70 : 122,173,810.05 = 73,229,585.90 : x
  2. Step 2: Convert to fraction form
    81,449,206.70/122,173,810.05 = 73,229,585.90/x
  3. Step 3: Cross multiply
    81,449,206.70x = 122,173,810.05 × 73,229,585.90
  4. Step 4: Simplify right side
    81,449,206.70x = 8,946,737,517,786,759
  5. Step 5: Solve for x
    x = 8,946,737,517,786,759/81,449,206.70
  6. Step 6: Final answer
    x = 109,844,378.85

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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.