Home / 120,383,791.52-166,130,608.64-65,380,041.68

Finding the Fourth Proportional to 120,383,791.52, 166,130,608.64 and 65,380,041.68

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Solution

The fourth proportional to 120,383,791.52, 166,130,608.64 and 65,380,041.68 is: 90,224,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,383,791.52 : 166,130,608.64 = 65,380,041.68 : x
  2. Step 2: Convert to fraction form
    120,383,791.52/166,130,608.64 = 65,380,041.68/x
  3. Step 3: Cross multiply
    120,383,791.52x = 166,130,608.64 × 65,380,041.68
  4. Step 4: Simplify right side
    120,383,791.52x = 10,861,626,116,049,414
  5. Step 5: Solve for x
    x = 10,861,626,116,049,414/120,383,791.52
  6. Step 6: Final answer
    x = 90,224,987.76

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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.