Home / 664,146,016.20-996,219,024.30-509,177,820.60

Finding the Fourth Proportional to 664,146,016.20, 996,219,024.30 and 509,177,820.60

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Solution

The fourth proportional to 664,146,016.20, 996,219,024.30 and 509,177,820.60 is: 763,766,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,146,016.20 : 996,219,024.30 = 509,177,820.60 : x
  2. Step 2: Convert to fraction form
    664,146,016.20/996,219,024.30 = 509,177,820.60/x
  3. Step 3: Cross multiply
    664,146,016.20x = 996,219,024.30 × 509,177,820.60
  4. Step 4: Simplify right side
    664,146,016.20x = 507,252,631,633,332,416
  5. Step 5: Solve for x
    x = 507,252,631,633,332,416/664,146,016.20
  6. Step 6: Final answer
    x = 763,766,730.90

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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.