Home / 839,821,344.20-1,259,732,016.30-664,469,433.80

Finding the Fourth Proportional to 839,821,344.20, 1,259,732,016.30 and 664,469,433.80

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Solution

The fourth proportional to 839,821,344.20, 1,259,732,016.30 and 664,469,433.80 is: 996,704,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,821,344.20 : 1,259,732,016.30 = 664,469,433.80 : x
  2. Step 2: Convert to fraction form
    839,821,344.20/1,259,732,016.30 = 664,469,433.80/x
  3. Step 3: Cross multiply
    839,821,344.20x = 1,259,732,016.30 × 664,469,433.80
  4. Step 4: Simplify right side
    839,821,344.20x = 837,053,419,610,593,280
  5. Step 5: Solve for x
    x = 837,053,419,610,593,280/839,821,344.20
  6. Step 6: Final answer
    x = 996,704,150.70

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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.