Home / 12,463,249.20-18,693,491.40-10,215,466.80

Finding the Fourth Proportional to 12,463,249.20, 18,693,491.40 and 10,215,466.80

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Solution

The fourth proportional to 12,463,249.20, 18,693,491.40 and 10,215,466.80 is: 15,322,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463,249.20 : 18,693,491.40 = 10,215,466.80 : x
  2. Step 2: Convert to fraction form
    12,463,249.20/18,693,491.40 = 10,215,466.80/x
  3. Step 3: Cross multiply
    12,463,249.20x = 18,693,491.40 × 10,215,466.80
  4. Step 4: Simplify right side
    12,463,249.20x = 190,962,740,772,785.53
  5. Step 5: Solve for x
    x = 190,962,740,772,785.53/12,463,249.20
  6. Step 6: Final answer
    x = 15,322,067.12

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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.