Home / 685,657,487,799.30-1,027,806,880,592.30-321,972,120,469.02

Finding the Fourth Proportional to 685,657,487,799.30, 1,027,806,880,592.30 and 321,972,120,469.02

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Solution

The fourth proportional to 685,657,487,799.30, 1,027,806,880,592.30 and 321,972,120,469.02 is: 482,639,169,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,657,487,799.30 : 1,027,806,880,592.30 = 321,972,120,469.02 : x
  2. Step 2: Convert to fraction form
    685,657,487,799.30/1,027,806,880,592.30 = 321,972,120,469.02/x
  3. Step 3: Cross multiply
    685,657,487,799.30x = 1,027,806,880,592.30 × 321,972,120,469.02
  4. Step 4: Simplify right side
    685,657,487,799.30x = 330,925,160,776,951,687,806,976
  5. Step 5: Solve for x
    x = 330,925,160,776,951,687,806,976/685,657,487,799.30
  6. Step 6: Final answer
    x = 482,639,169,943.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.