Home / 664,288,086.30-996,432,129.45-480,622,076.70

Finding the Fourth Proportional to 664,288,086.30, 996,432,129.45 and 480,622,076.70

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Solution

The fourth proportional to 664,288,086.30, 996,432,129.45 and 480,622,076.70 is: 720,933,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288,086.30 : 996,432,129.45 = 480,622,076.70 : x
  2. Step 2: Convert to fraction form
    664,288,086.30/996,432,129.45 = 480,622,076.70/x
  3. Step 3: Cross multiply
    664,288,086.30x = 996,432,129.45 × 480,622,076.70
  4. Step 4: Simplify right side
    664,288,086.30x = 478,907,279,346,862,208
  5. Step 5: Solve for x
    x = 478,907,279,346,862,208/664,288,086.30
  6. Step 6: Final answer
    x = 720,933,115.05

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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.