Home / 259,469,204.80-389,203,807.20-86,888,660.80

Finding the Fourth Proportional to 259,469,204.80, 389,203,807.20 and 86,888,660.80

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Solution

The fourth proportional to 259,469,204.80, 389,203,807.20 and 86,888,660.80 is: 130,332,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,469,204.80 : 389,203,807.20 = 86,888,660.80 : x
  2. Step 2: Convert to fraction form
    259,469,204.80/389,203,807.20 = 86,888,660.80/x
  3. Step 3: Cross multiply
    259,469,204.80x = 389,203,807.20 × 86,888,660.80
  4. Step 4: Simplify right side
    259,469,204.80x = 33,817,397,585,869,396
  5. Step 5: Solve for x
    x = 33,817,397,585,869,396/259,469,204.80
  6. Step 6: Final answer
    x = 130,332,991.20

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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.