Home / 685,657,487,811.86-1,027,806,880,610.70-321,972,120,481.22

Finding the Fourth Proportional to 685,657,487,811.86, 1,027,806,880,610.70 and 321,972,120,481.22

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Solution

The fourth proportional to 685,657,487,811.86, 1,027,806,880,610.70 and 321,972,120,481.22 is: 482,639,169,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,657,487,811.86 : 1,027,806,880,610.70 = 321,972,120,481.22 : x
  2. Step 2: Convert to fraction form
    685,657,487,811.86/1,027,806,880,610.70 = 321,972,120,481.22/x
  3. Step 3: Cross multiply
    685,657,487,811.86x = 1,027,806,880,610.70 × 321,972,120,481.22
  4. Step 4: Simplify right side
    685,657,487,811.86x = 330,925,160,795,415,148,232,704
  5. Step 5: Solve for x
    x = 330,925,160,795,415,148,232,704/685,657,487,811.86
  6. Step 6: Final answer
    x = 482,639,169,961.52

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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.