Home / 489,680,148,377.86-675,760,645,866.78-269,944,013,221.43

Finding the Fourth Proportional to 489,680,148,377.86, 675,760,645,866.78 and 269,944,013,221.43

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Solution

The fourth proportional to 489,680,148,377.86, 675,760,645,866.78 and 269,944,013,221.43 is: 372,523,863,437.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,680,148,377.86 : 675,760,645,866.78 = 269,944,013,221.43 : x
  2. Step 2: Convert to fraction form
    489,680,148,377.86/675,760,645,866.78 = 269,944,013,221.43/x
  3. Step 3: Cross multiply
    489,680,148,377.86x = 675,760,645,866.78 × 269,944,013,221.43
  4. Step 4: Simplify right side
    489,680,148,377.86x = 182,417,540,722,384,133,160,960
  5. Step 5: Solve for x
    x = 182,417,540,722,384,133,160,960/489,680,148,377.86
  6. Step 6: Final answer
    x = 372,523,863,437.53

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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.