Home / 258,995,467.20-388,493,200.80-67,519,243.20

Finding the Fourth Proportional to 258,995,467.20, 388,493,200.80 and 67,519,243.20

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Solution

The fourth proportional to 258,995,467.20, 388,493,200.80 and 67,519,243.20 is: 101,278,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,995,467.20 : 388,493,200.80 = 67,519,243.20 : x
  2. Step 2: Convert to fraction form
    258,995,467.20/388,493,200.80 = 67,519,243.20/x
  3. Step 3: Cross multiply
    258,995,467.20x = 388,493,200.80 × 67,519,243.20
  4. Step 4: Simplify right side
    258,995,467.20x = 26,230,766,906,361,636
  5. Step 5: Solve for x
    x = 26,230,766,906,361,636/258,995,467.20
  6. Step 6: Final answer
    x = 101,278,864.80

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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.