Home / 87,409,749.66-120,632,131.35-48,259,067.10

Finding the Fourth Proportional to 87,409,749.66, 120,632,131.35 and 48,259,067.10

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Solution

The fourth proportional to 87,409,749.66, 120,632,131.35 and 48,259,067.10 is: 66,601,198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,409,749.66 : 120,632,131.35 = 48,259,067.10 : x
  2. Step 2: Convert to fraction form
    87,409,749.66/120,632,131.35 = 48,259,067.10/x
  3. Step 3: Cross multiply
    87,409,749.66x = 120,632,131.35 × 48,259,067.10
  4. Step 4: Simplify right side
    87,409,749.66x = 5,821,594,121,235,663
  5. Step 5: Solve for x
    x = 5,821,594,121,235,663/87,409,749.66
  6. Step 6: Final answer
    x = 66,601,198.88

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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.