Home / 312,385,603.33-431,082,789.77-171,251,996.86

Finding the Fourth Proportional to 312,385,603.33, 431,082,789.77 and 171,251,996.86

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Solution

The fourth proportional to 312,385,603.33, 431,082,789.77 and 171,251,996.86 is: 236,322,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,385,603.33 : 431,082,789.77 = 171,251,996.86 : x
  2. Step 2: Convert to fraction form
    312,385,603.33/431,082,789.77 = 171,251,996.86/x
  3. Step 3: Cross multiply
    312,385,603.33x = 431,082,789.77 × 171,251,996.86
  4. Step 4: Simplify right side
    312,385,603.33x = 73,823,788,557,080,400
  5. Step 5: Solve for x
    x = 73,823,788,557,080,400/312,385,603.33
  6. Step 6: Final answer
    x = 236,322,633.86

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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.