Home / 121,321,696.50-181,982,544.75-40,542,664.50

Finding the Fourth Proportional to 121,321,696.50, 181,982,544.75 and 40,542,664.50

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Solution

The fourth proportional to 121,321,696.50, 181,982,544.75 and 40,542,664.50 is: 60,813,996.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321,696.50 : 181,982,544.75 = 40,542,664.50 : x
  2. Step 2: Convert to fraction form
    121,321,696.50/181,982,544.75 = 40,542,664.50/x
  3. Step 3: Cross multiply
    121,321,696.50x = 181,982,544.75 × 40,542,664.50
  4. Step 4: Simplify right side
    121,321,696.50x = 7,378,057,256,655,486
  5. Step 5: Solve for x
    x = 7,378,057,256,655,486/121,321,696.50
  6. Step 6: Final answer
    x = 60,813,996.75

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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.