Home / 664,302,619.20-996,453,928.80-479,680,015.80

Finding the Fourth Proportional to 664,302,619.20, 996,453,928.80 and 479,680,015.80

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Solution

The fourth proportional to 664,302,619.20, 996,453,928.80 and 479,680,015.80 is: 719,520,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,619.20 : 996,453,928.80 = 479,680,015.80 : x
  2. Step 2: Convert to fraction form
    664,302,619.20/996,453,928.80 = 479,680,015.80/x
  3. Step 3: Cross multiply
    664,302,619.20x = 996,453,928.80 × 479,680,015.80
  4. Step 4: Simplify right side
    664,302,619.20x = 477,979,036,310,756,096
  5. Step 5: Solve for x
    x = 477,979,036,310,756,096/664,302,619.20
  6. Step 6: Final answer
    x = 719,520,023.70

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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.