Home / 144,048,268.47-198,786,620.21-78,858,172.47

Finding the Fourth Proportional to 144,048,268.47, 198,786,620.21 and 78,858,172.47

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Solution

The fourth proportional to 144,048,268.47, 198,786,620.21 and 78,858,172.47 is: 108,824,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,048,268.47 : 198,786,620.21 = 78,858,172.47 : x
  2. Step 2: Convert to fraction form
    144,048,268.47/198,786,620.21 = 78,858,172.47/x
  3. Step 3: Cross multiply
    144,048,268.47x = 198,786,620.21 × 78,858,172.47
  4. Step 4: Simplify right side
    144,048,268.47x = 15,675,949,580,854,278
  5. Step 5: Solve for x
    x = 15,675,949,580,854,278/144,048,268.47
  6. Step 6: Final answer
    x = 108,824,283.33

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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.