Home / 878,622,591.87-1,212,517,695.60-482,142,112.74

Finding the Fourth Proportional to 878,622,591.87, 1,212,517,695.60 and 482,142,112.74

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Solution

The fourth proportional to 878,622,591.87, 1,212,517,695.60 and 482,142,112.74 is: 665,366,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,622,591.87 : 1,212,517,695.60 = 482,142,112.74 : x
  2. Step 2: Convert to fraction form
    878,622,591.87/1,212,517,695.60 = 482,142,112.74/x
  3. Step 3: Cross multiply
    878,622,591.87x = 1,212,517,695.60 × 482,142,112.74
  4. Step 4: Simplify right side
    878,622,591.87x = 584,605,843,491,220,224
  5. Step 5: Solve for x
    x = 584,605,843,491,220,224/878,622,591.87
  6. Step 6: Final answer
    x = 665,366,277.74

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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.