Home / 206,193,359.33-309,410,644.76-76,890,298.85

Finding the Fourth Proportional to 206,193,359.33, 309,410,644.76 and 76,890,298.85

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Solution

The fourth proportional to 206,193,359.33, 309,410,644.76 and 76,890,298.85 is: 115,380,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,193,359.33 : 309,410,644.76 = 76,890,298.85 : x
  2. Step 2: Convert to fraction form
    206,193,359.33/309,410,644.76 = 76,890,298.85/x
  3. Step 3: Cross multiply
    206,193,359.33x = 309,410,644.76 × 76,890,298.85
  4. Step 4: Simplify right side
    206,193,359.33x = 23,790,676,942,583,132
  5. Step 5: Solve for x
    x = 23,790,676,942,583,132/206,193,359.33
  6. Step 6: Final answer
    x = 115,380,422.63

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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.