Home / 231,987,016.27-320,139,656.40-172,713,343.33

Finding the Fourth Proportional to 231,987,016.27, 320,139,656.40 and 172,713,343.33

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Solution

The fourth proportional to 231,987,016.27, 320,139,656.40 and 172,713,343.33 is: 238,342,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,987,016.27 : 320,139,656.40 = 172,713,343.33 : x
  2. Step 2: Convert to fraction form
    231,987,016.27/320,139,656.40 = 172,713,343.33/x
  3. Step 3: Cross multiply
    231,987,016.27x = 320,139,656.40 × 172,713,343.33
  4. Step 4: Simplify right side
    231,987,016.27x = 55,292,390,389,361,432
  5. Step 5: Solve for x
    x = 55,292,390,389,361,432/231,987,016.27
  6. Step 6: Final answer
    x = 238,342,607.61

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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.