Home / 221,423,489.40-332,135,234.10-208,882,356.60

Finding the Fourth Proportional to 221,423,489.40, 332,135,234.10 and 208,882,356.60

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Solution

The fourth proportional to 221,423,489.40, 332,135,234.10 and 208,882,356.60 is: 313,323,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,423,489.40 : 332,135,234.10 = 208,882,356.60 : x
  2. Step 2: Convert to fraction form
    221,423,489.40/332,135,234.10 = 208,882,356.60/x
  3. Step 3: Cross multiply
    221,423,489.40x = 332,135,234.10 × 208,882,356.60
  4. Step 4: Simplify right side
    221,423,489.40x = 69,377,190,408,700,680
  5. Step 5: Solve for x
    x = 69,377,190,408,700,680/221,423,489.40
  6. Step 6: Final answer
    x = 313,323,534.90

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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.