Home / 12,408,642.36-18,613,464.12-4,322,435.85

Finding the Fourth Proportional to 12,408,642.36, 18,613,464.12 and 4,322,435.85

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Solution

The fourth proportional to 12,408,642.36, 18,613,464.12 and 4,322,435.85 is: 6,483,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,642.36 : 18,613,464.12 = 4,322,435.85 : x
  2. Step 2: Convert to fraction form
    12,408,642.36/18,613,464.12 = 4,322,435.85/x
  3. Step 3: Cross multiply
    12,408,642.36x = 18,613,464.12 × 4,322,435.85
  4. Step 4: Simplify right side
    12,408,642.36x = 80,455,504,604,976.70
  5. Step 5: Solve for x
    x = 80,455,504,604,976.70/12,408,642.36
  6. Step 6: Final answer
    x = 6,483,828.15

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1.5x scale

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.