Home / 839,821,338.20-1,259,732,007.30-664,469,427.80

Finding the Fourth Proportional to 839,821,338.20, 1,259,732,007.30 and 664,469,427.80

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Solution

The fourth proportional to 839,821,338.20, 1,259,732,007.30 and 664,469,427.80 is: 996,704,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,821,338.20 : 1,259,732,007.30 = 664,469,427.80 : x
  2. Step 2: Convert to fraction form
    839,821,338.20/1,259,732,007.30 = 664,469,427.80/x
  3. Step 3: Cross multiply
    839,821,338.20x = 1,259,732,007.30 × 664,469,427.80
  4. Step 4: Simplify right side
    839,821,338.20x = 837,053,406,071,976,320
  5. Step 5: Solve for x
    x = 837,053,406,071,976,320/839,821,338.20
  6. Step 6: Final answer
    x = 996,704,141.70

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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.