Home / 399,191,115.44-551,422,927.56-300,815,481.44

Finding the Fourth Proportional to 399,191,115.44, 551,422,927.56 and 300,815,481.44

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Solution

The fourth proportional to 399,191,115.44, 551,422,927.56 and 300,815,481.44 is: 415,531,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,191,115.44 : 551,422,927.56 = 300,815,481.44 : x
  2. Step 2: Convert to fraction form
    399,191,115.44/551,422,927.56 = 300,815,481.44/x
  3. Step 3: Cross multiply
    399,191,115.44x = 551,422,927.56 × 300,815,481.44
  4. Step 4: Simplify right side
    399,191,115.44x = 165,876,553,428,258,528
  5. Step 5: Solve for x
    x = 165,876,553,428,258,528/399,191,115.44
  6. Step 6: Final answer
    x = 415,531,676.47

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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.