Home / 685,657,487,796.30-1,027,806,880,587.80-321,972,120,466.02

Finding the Fourth Proportional to 685,657,487,796.30, 1,027,806,880,587.80 and 321,972,120,466.02

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Solution

The fourth proportional to 685,657,487,796.30, 1,027,806,880,587.80 and 321,972,120,466.02 is: 482,639,169,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,657,487,796.30 : 1,027,806,880,587.80 = 321,972,120,466.02 : x
  2. Step 2: Convert to fraction form
    685,657,487,796.30/1,027,806,880,587.80 = 321,972,120,466.02/x
  3. Step 3: Cross multiply
    685,657,487,796.30x = 1,027,806,880,587.80 × 321,972,120,466.02
  4. Step 4: Simplify right side
    685,657,487,796.30x = 330,925,160,772,419,423,567,872
  5. Step 5: Solve for x
    x = 330,925,160,772,419,423,567,872/685,657,487,796.30
  6. Step 6: Final answer
    x = 482,639,169,938.93

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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.