Home / 231,987,018.27-320,139,659.16-172,713,345.33

Finding the Fourth Proportional to 231,987,018.27, 320,139,659.16 and 172,713,345.33

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Solution

The fourth proportional to 231,987,018.27, 320,139,659.16 and 172,713,345.33 is: 238,342,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,987,018.27 : 320,139,659.16 = 172,713,345.33 : x
  2. Step 2: Convert to fraction form
    231,987,018.27/320,139,659.16 = 172,713,345.33/x
  3. Step 3: Cross multiply
    231,987,018.27x = 320,139,659.16 × 172,713,345.33
  4. Step 4: Simplify right side
    231,987,018.27x = 55,292,391,506,329,584
  5. Step 5: Solve for x
    x = 55,292,391,506,329,584/231,987,018.27
  6. Step 6: Final answer
    x = 238,342,610.37

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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.