Home / 398,584,287.74-550,046,659.54-222,372,310.44

Finding the Fourth Proportional to 398,584,287.74, 550,046,659.54 and 222,372,310.44

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Solution

The fourth proportional to 398,584,287.74, 550,046,659.54 and 222,372,310.44 is: 306,873,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,584,287.74 : 550,046,659.54 = 222,372,310.44 : x
  2. Step 2: Convert to fraction form
    398,584,287.74/550,046,659.54 = 222,372,310.44/x
  3. Step 3: Cross multiply
    398,584,287.74x = 550,046,659.54 × 222,372,310.44
  4. Step 4: Simplify right side
    398,584,287.74x = 122,315,146,531,713,856
  5. Step 5: Solve for x
    x = 122,315,146,531,713,856/398,584,287.74
  6. Step 6: Final answer
    x = 306,873,979.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.