Home / 398,659,781.58-597,972,635.82-136,367,786.47

Finding the Fourth Proportional to 398,659,781.58, 597,972,635.82 and 136,367,786.47

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Solution

The fourth proportional to 398,659,781.58, 597,972,635.82 and 136,367,786.47 is: 204,545,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,659,781.58 : 597,972,635.82 = 136,367,786.47 : x
  2. Step 2: Convert to fraction form
    398,659,781.58/597,972,635.82 = 136,367,786.47/x
  3. Step 3: Cross multiply
    398,659,781.58x = 597,972,635.82 × 136,367,786.47
  4. Step 4: Simplify right side
    398,659,781.58x = 81,544,204,716,404,832
  5. Step 5: Solve for x
    x = 81,544,204,716,404,832/398,659,781.58
  6. Step 6: Final answer
    x = 204,545,852.09

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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.