Home / 137,705,679.12-206,585,778.54-39,338,234.76

Finding the Fourth Proportional to 137,705,679.12, 206,585,778.54 and 39,338,234.76

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Solution

The fourth proportional to 137,705,679.12, 206,585,778.54 and 39,338,234.76 is: 59,015,139.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,705,679.12 : 206,585,778.54 = 39,338,234.76 : x
  2. Step 2: Convert to fraction form
    137,705,679.12/206,585,778.54 = 39,338,234.76/x
  3. Step 3: Cross multiply
    137,705,679.12x = 206,585,778.54 × 39,338,234.76
  4. Step 4: Simplify right side
    137,705,679.12x = 8,126,719,854,283,889
  5. Step 5: Solve for x
    x = 8,126,719,854,283,889/137,705,679.12
  6. Step 6: Final answer
    x = 59,015,139.44

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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.