Home / 12,646,017.78-18,972,578.43-5,078,297.94

Finding the Fourth Proportional to 12,646,017.78, 18,972,578.43 and 5,078,297.94

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Solution

The fourth proportional to 12,646,017.78, 18,972,578.43 and 5,078,297.94 is: 7,618,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646,017.78 : 18,972,578.43 = 5,078,297.94 : x
  2. Step 2: Convert to fraction form
    12,646,017.78/18,972,578.43 = 5,078,297.94/x
  3. Step 3: Cross multiply
    12,646,017.78x = 18,972,578.43 × 5,078,297.94
  4. Step 4: Simplify right side
    12,646,017.78x = 96,348,405,957,557.44
  5. Step 5: Solve for x
    x = 96,348,405,957,557.44/12,646,017.78
  6. Step 6: Final answer
    x = 7,618,873.20

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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.