Home / 122,396,037.78-168,910,677.66-66,643,620.42

Finding the Fourth Proportional to 122,396,037.78, 168,910,677.66 and 66,643,620.42

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Solution

The fourth proportional to 122,396,037.78, 168,910,677.66 and 66,643,620.42 is: 91,970,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,396,037.78 : 168,910,677.66 = 66,643,620.42 : x
  2. Step 2: Convert to fraction form
    122,396,037.78/168,910,677.66 = 66,643,620.42/x
  3. Step 3: Cross multiply
    122,396,037.78x = 168,910,677.66 × 66,643,620.42
  4. Step 4: Simplify right side
    122,396,037.78x = 11,256,819,086,858,014
  5. Step 5: Solve for x
    x = 11,256,819,086,858,014/122,396,037.78
  6. Step 6: Final answer
    x = 91,970,453.38

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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.