Home / 399,383,002.68-551,137,971.34-223,172,446.01

Finding the Fourth Proportional to 399,383,002.68, 551,137,971.34 and 223,172,446.01

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Solution

The fourth proportional to 399,383,002.68, 551,137,971.34 and 223,172,446.01 is: 307,972,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,383,002.68 : 551,137,971.34 = 223,172,446.01 : x
  2. Step 2: Convert to fraction form
    399,383,002.68/551,137,971.34 = 223,172,446.01/x
  3. Step 3: Cross multiply
    399,383,002.68x = 551,137,971.34 × 223,172,446.01
  4. Step 4: Simplify right side
    399,383,002.68x = 122,998,809,149,203,904
  5. Step 5: Solve for x
    x = 122,998,809,149,203,904/399,383,002.68
  6. Step 6: Final answer
    x = 307,972,067.73

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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.