Home / 137,345,272.30-206,257,056.90-72,775,190.80

Finding the Fourth Proportional to 137,345,272.30, 206,257,056.90 and 72,775,190.80

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Solution

The fourth proportional to 137,345,272.30, 206,257,056.90 and 72,775,190.80 is: 109,289,503.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,345,272.30 : 206,257,056.90 = 72,775,190.80 : x
  2. Step 2: Convert to fraction form
    137,345,272.30/206,257,056.90 = 72,775,190.80/x
  3. Step 3: Cross multiply
    137,345,272.30x = 206,257,056.90 × 72,775,190.80
  4. Step 4: Simplify right side
    137,345,272.30x = 15,010,396,669,743,956
  5. Step 5: Solve for x
    x = 15,010,396,669,743,956/137,345,272.30
  6. Step 6: Final answer
    x = 109,289,503.88

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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.