Home / 204,519,093.40-306,778,640.10-139,949,011.90

Finding the Fourth Proportional to 204,519,093.40, 306,778,640.10 and 139,949,011.90

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Solution

The fourth proportional to 204,519,093.40, 306,778,640.10 and 139,949,011.90 is: 209,923,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,519,093.40 : 306,778,640.10 = 139,949,011.90 : x
  2. Step 2: Convert to fraction form
    204,519,093.40/306,778,640.10 = 139,949,011.90/x
  3. Step 3: Cross multiply
    204,519,093.40x = 306,778,640.10 × 139,949,011.90
  4. Step 4: Simplify right side
    204,519,093.40x = 42,933,367,554,020,720
  5. Step 5: Solve for x
    x = 42,933,367,554,020,720/204,519,093.40
  6. Step 6: Final answer
    x = 209,923,517.85

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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.