Home / 261,505,305.10-391,550,168.85-204,882,201.10

Finding the Fourth Proportional to 261,505,305.10, 391,550,168.85 and 204,882,201.10

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Solution

The fourth proportional to 261,505,305.10, 391,550,168.85 and 204,882,201.10 is: 306,768,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,505,305.10 : 391,550,168.85 = 204,882,201.10 : x
  2. Step 2: Convert to fraction form
    261,505,305.10/391,550,168.85 = 204,882,201.10/x
  3. Step 3: Cross multiply
    261,505,305.10x = 391,550,168.85 × 204,882,201.10
  4. Step 4: Simplify right side
    261,505,305.10x = 80,221,660,435,064,656
  5. Step 5: Solve for x
    x = 80,221,660,435,064,656/261,505,305.10
  6. Step 6: Final answer
    x = 306,768,768.63

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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.