Home / 165,858,919.68-228,968,172.92-103,155,229.45

Finding the Fourth Proportional to 165,858,919.68, 228,968,172.92 and 103,155,229.45

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Solution

The fourth proportional to 165,858,919.68, 228,968,172.92 and 103,155,229.45 is: 142,405,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,858,919.68 : 228,968,172.92 = 103,155,229.45 : x
  2. Step 2: Convert to fraction form
    165,858,919.68/228,968,172.92 = 103,155,229.45/x
  3. Step 3: Cross multiply
    165,858,919.68x = 228,968,172.92 × 103,155,229.45
  4. Step 4: Simplify right side
    165,858,919.68x = 23,619,264,414,274,244
  5. Step 5: Solve for x
    x = 23,619,264,414,274,244/165,858,919.68
  6. Step 6: Final answer
    x = 142,405,753.39

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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.