Home / 664,605,257.60-996,907,886.40-320,231,489.60

Finding the Fourth Proportional to 664,605,257.60, 996,907,886.40 and 320,231,489.60

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Solution

The fourth proportional to 664,605,257.60, 996,907,886.40 and 320,231,489.60 is: 480,347,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,605,257.60 : 996,907,886.40 = 320,231,489.60 : x
  2. Step 2: Convert to fraction form
    664,605,257.60/996,907,886.40 = 320,231,489.60/x
  3. Step 3: Cross multiply
    664,605,257.60x = 996,907,886.40 × 320,231,489.60
  4. Step 4: Simplify right side
    664,605,257.60x = 319,241,297,455,859,584
  5. Step 5: Solve for x
    x = 319,241,297,455,859,584/664,605,257.60
  6. Step 6: Final answer
    x = 480,347,234.40

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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.