Home / 121,933,965.60-168,269,031.45-66,179,383.02

Finding the Fourth Proportional to 121,933,965.60, 168,269,031.45 and 66,179,383.02

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Solution

The fourth proportional to 121,933,965.60, 168,269,031.45 and 66,179,383.02 is: 91,327,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,933,965.60 : 168,269,031.45 = 66,179,383.02 : x
  2. Step 2: Convert to fraction form
    121,933,965.60/168,269,031.45 = 66,179,383.02/x
  3. Step 3: Cross multiply
    121,933,965.60x = 168,269,031.45 × 66,179,383.02
  4. Step 4: Simplify right side
    121,933,965.60x = 11,135,940,682,733,976
  5. Step 5: Solve for x
    x = 11,135,940,682,733,976/121,933,965.60
  6. Step 6: Final answer
    x = 91,327,634.82

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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.