Home / 137,784,190.20-206,676,285.30-91,867,687.80

Finding the Fourth Proportional to 137,784,190.20, 206,676,285.30 and 91,867,687.80

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Solution

The fourth proportional to 137,784,190.20, 206,676,285.30 and 91,867,687.80 is: 137,801,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,784,190.20 : 206,676,285.30 = 91,867,687.80 : x
  2. Step 2: Convert to fraction form
    137,784,190.20/206,676,285.30 = 91,867,687.80/x
  3. Step 3: Cross multiply
    137,784,190.20x = 206,676,285.30 × 91,867,687.80
  4. Step 4: Simplify right side
    137,784,190.20x = 18,986,872,453,604,128
  5. Step 5: Solve for x
    x = 18,986,872,453,604,128/137,784,190.20
  6. Step 6: Final answer
    x = 137,801,531.70

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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.