Home / 664,605,229.60-996,907,844.40-320,231,461.60

Finding the Fourth Proportional to 664,605,229.60, 996,907,844.40 and 320,231,461.60

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Solution

The fourth proportional to 664,605,229.60, 996,907,844.40 and 320,231,461.60 is: 480,347,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,605,229.60 : 996,907,844.40 = 320,231,461.60 : x
  2. Step 2: Convert to fraction form
    664,605,229.60/996,907,844.40 = 320,231,461.60/x
  3. Step 3: Cross multiply
    664,605,229.60x = 996,907,844.40 × 320,231,461.60
  4. Step 4: Simplify right side
    664,605,229.60x = 319,241,256,092,717,376
  5. Step 5: Solve for x
    x = 319,241,256,092,717,376/664,605,229.60
  6. Step 6: Final answer
    x = 480,347,192.40

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Double scale
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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.