Home / 399,315,195.75-598,984,995.93-136,996,067.04

Finding the Fourth Proportional to 399,315,195.75, 598,984,995.93 and 136,996,067.04

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Solution

The fourth proportional to 399,315,195.75, 598,984,995.93 and 136,996,067.04 is: 205,498,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,315,195.75 : 598,984,995.93 = 136,996,067.04 : x
  2. Step 2: Convert to fraction form
    399,315,195.75/598,984,995.93 = 136,996,067.04/x
  3. Step 3: Cross multiply
    399,315,195.75x = 598,984,995.93 × 136,996,067.04
  4. Step 4: Simplify right side
    399,315,195.75x = 82,058,588,658,380,400
  5. Step 5: Solve for x
    x = 82,058,588,658,380,400/399,315,195.75
  6. Step 6: Final answer
    x = 205,498,286.90

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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.