Home / 137,908,665.96-206,800,747.20-39,517,867.76

Finding the Fourth Proportional to 137,908,665.96, 206,800,747.20 and 39,517,867.76

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Solution

The fourth proportional to 137,908,665.96, 206,800,747.20 and 39,517,867.76 is: 59,258,963.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,908,665.96 : 206,800,747.20 = 39,517,867.76 : x
  2. Step 2: Convert to fraction form
    137,908,665.96/206,800,747.20 = 39,517,867.76/x
  3. Step 3: Cross multiply
    137,908,665.96x = 206,800,747.20 × 39,517,867.76
  4. Step 4: Simplify right side
    137,908,665.96x = 8,172,324,579,484,787
  5. Step 5: Solve for x
    x = 8,172,324,579,484,787/137,908,665.96
  6. Step 6: Final answer
    x = 59,258,963.33

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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.