Home / 664,605,273.60-996,907,910.40-320,231,505.60

Finding the Fourth Proportional to 664,605,273.60, 996,907,910.40 and 320,231,505.60

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Solution

The fourth proportional to 664,605,273.60, 996,907,910.40 and 320,231,505.60 is: 480,347,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,605,273.60 : 996,907,910.40 = 320,231,505.60 : x
  2. Step 2: Convert to fraction form
    664,605,273.60/996,907,910.40 = 320,231,505.60/x
  3. Step 3: Cross multiply
    664,605,273.60x = 996,907,910.40 × 320,231,505.60
  4. Step 4: Simplify right side
    664,605,273.60x = 319,241,321,091,941,888
  5. Step 5: Solve for x
    x = 319,241,321,091,941,888/664,605,273.60
  6. Step 6: Final answer
    x = 480,347,258.40

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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.