Home / 419,329,107.20-628,993,660.80-296,885,100.80

Finding the Fourth Proportional to 419,329,107.20, 628,993,660.80 and 296,885,100.80

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Solution

The fourth proportional to 419,329,107.20, 628,993,660.80 and 296,885,100.80 is: 445,327,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,329,107.20 : 628,993,660.80 = 296,885,100.80 : x
  2. Step 2: Convert to fraction form
    419,329,107.20/628,993,660.80 = 296,885,100.80/x
  3. Step 3: Cross multiply
    419,329,107.20x = 628,993,660.80 × 296,885,100.80
  4. Step 4: Simplify right side
    419,329,107.20x = 186,738,846,389,168,992
  5. Step 5: Solve for x
    x = 186,738,846,389,168,992/419,329,107.20
  6. Step 6: Final answer
    x = 445,327,651.20

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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.