Home / 144,048,268.60-198,786,620.38-78,858,172.60

Finding the Fourth Proportional to 144,048,268.60, 198,786,620.38 and 78,858,172.60

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Solution

The fourth proportional to 144,048,268.60, 198,786,620.38 and 78,858,172.60 is: 108,824,283.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,048,268.60 : 198,786,620.38 = 78,858,172.60 : x
  2. Step 2: Convert to fraction form
    144,048,268.60/198,786,620.38 = 78,858,172.60/x
  3. Step 3: Cross multiply
    144,048,268.60x = 198,786,620.38 × 78,858,172.60
  4. Step 4: Simplify right side
    144,048,268.60x = 15,675,949,619,305,638
  5. Step 5: Solve for x
    x = 15,675,949,619,305,638/144,048,268.60
  6. Step 6: Final answer
    x = 108,824,283.50

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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.