Home / 261,505,308.60-391,550,174.10-204,882,204.60

Finding the Fourth Proportional to 261,505,308.60, 391,550,174.10 and 204,882,204.60

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Solution

The fourth proportional to 261,505,308.60, 391,550,174.10 and 204,882,204.60 is: 306,768,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,505,308.60 : 391,550,174.10 = 204,882,204.60 : x
  2. Step 2: Convert to fraction form
    261,505,308.60/391,550,174.10 = 204,882,204.60/x
  3. Step 3: Cross multiply
    261,505,308.60x = 391,550,174.10 × 204,882,204.60
  4. Step 4: Simplify right side
    261,505,308.60x = 80,221,662,881,121,824
  5. Step 5: Solve for x
    x = 80,221,662,881,121,824/261,505,308.60
  6. Step 6: Final answer
    x = 306,768,773.88

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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.