Home / 20,408,067.12-30,615,867.72-8,441,736.24

Finding the Fourth Proportional to 20,408,067.12, 30,615,867.72 and 8,441,736.24

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Solution

The fourth proportional to 20,408,067.12, 30,615,867.72 and 8,441,736.24 is: 12,664,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,067.12 : 30,615,867.72 = 8,441,736.24 : x
  2. Step 2: Convert to fraction form
    20,408,067.12/30,615,867.72 = 8,441,736.24/x
  3. Step 3: Cross multiply
    20,408,067.12x = 30,615,867.72 × 8,441,736.24
  4. Step 4: Simplify right side
    20,408,067.12x = 258,451,080,050,970.16
  5. Step 5: Solve for x
    x = 258,451,080,050,970.16/20,408,067.12
  6. Step 6: Final answer
    x = 12,664,162.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.