Home / 489,680,148,376.47-675,760,645,864.88-269,944,013,220.05

Finding the Fourth Proportional to 489,680,148,376.47, 675,760,645,864.88 and 269,944,013,220.05

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Solution

The fourth proportional to 489,680,148,376.47, 675,760,645,864.88 and 269,944,013,220.05 is: 372,523,863,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,680,148,376.47 : 675,760,645,864.88 = 269,944,013,220.05 : x
  2. Step 2: Convert to fraction form
    489,680,148,376.47/675,760,645,864.88 = 269,944,013,220.05/x
  3. Step 3: Cross multiply
    489,680,148,376.47x = 675,760,645,864.88 × 269,944,013,220.05
  4. Step 4: Simplify right side
    489,680,148,376.47x = 182,417,540,720,938,675,339,264
  5. Step 5: Solve for x
    x = 182,417,540,720,938,675,339,264/489,680,148,376.47
  6. Step 6: Final answer
    x = 372,523,863,435.64

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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.