Home / 664,605,080.60-996,907,620.90-320,231,312.60

Finding the Fourth Proportional to 664,605,080.60, 996,907,620.90 and 320,231,312.60

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Solution

The fourth proportional to 664,605,080.60, 996,907,620.90 and 320,231,312.60 is: 480,346,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,605,080.60 : 996,907,620.90 = 320,231,312.60 : x
  2. Step 2: Convert to fraction form
    664,605,080.60/996,907,620.90 = 320,231,312.60/x
  3. Step 3: Cross multiply
    664,605,080.60x = 996,907,620.90 × 320,231,312.60
  4. Step 4: Simplify right side
    664,605,080.60x = 319,241,035,981,750,208
  5. Step 5: Solve for x
    x = 319,241,035,981,750,208/664,605,080.60
  6. Step 6: Final answer
    x = 480,346,968.90

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Similar ratio
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1.5x scale

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.