Home / 137,965,421.34-206,912,819.25-40,898,429.82

Finding the Fourth Proportional to 137,965,421.34, 206,912,819.25 and 40,898,429.82

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Solution

The fourth proportional to 137,965,421.34, 206,912,819.25 and 40,898,429.82 is: 61,337,176.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,965,421.34 : 206,912,819.25 = 40,898,429.82 : x
  2. Step 2: Convert to fraction form
    137,965,421.34/206,912,819.25 = 40,898,429.82/x
  3. Step 3: Cross multiply
    137,965,421.34x = 206,912,819.25 × 40,898,429.82
  4. Step 4: Simplify right side
    137,965,421.34x = 8,462,409,416,954,470
  5. Step 5: Solve for x
    x = 8,462,409,416,954,470/137,965,421.34
  6. Step 6: Final answer
    x = 61,337,176.63

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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.