Home / 231,835,920.72-319,941,243.27-127,417,693.20

Finding the Fourth Proportional to 231,835,920.72, 319,941,243.27 and 127,417,693.20

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Solution

The fourth proportional to 231,835,920.72, 319,941,243.27 and 127,417,693.20 is: 175,840,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,835,920.72 : 319,941,243.27 = 127,417,693.20 : x
  2. Step 2: Convert to fraction form
    231,835,920.72/319,941,243.27 = 127,417,693.20/x
  3. Step 3: Cross multiply
    231,835,920.72x = 319,941,243.27 × 127,417,693.20
  4. Step 4: Simplify right side
    231,835,920.72x = 40,766,175,177,003,424
  5. Step 5: Solve for x
    x = 40,766,175,177,003,424/231,835,920.72
  6. Step 6: Final answer
    x = 175,840,633.54

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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.