Home / 221,154,220.20-331,731,330.30-207,522,758.55

Finding the Fourth Proportional to 221,154,220.20, 331,731,330.30 and 207,522,758.55

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Solution

The fourth proportional to 221,154,220.20, 331,731,330.30 and 207,522,758.55 is: 311,284,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,154,220.20 : 331,731,330.30 = 207,522,758.55 : x
  2. Step 2: Convert to fraction form
    221,154,220.20/331,731,330.30 = 207,522,758.55/x
  3. Step 3: Cross multiply
    221,154,220.20x = 331,731,330.30 × 207,522,758.55
  4. Step 4: Simplify right side
    221,154,220.20x = 68,841,800,761,317,208
  5. Step 5: Solve for x
    x = 68,841,800,761,317,208/221,154,220.20
  6. Step 6: Final answer
    x = 311,284,137.83

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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.