Home / 12,646,017.28-18,972,577.68-5,078,297.44

Finding the Fourth Proportional to 12,646,017.28, 18,972,577.68 and 5,078,297.44

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Solution

The fourth proportional to 12,646,017.28, 18,972,577.68 and 5,078,297.44 is: 7,618,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646,017.28 : 18,972,577.68 = 5,078,297.44 : x
  2. Step 2: Convert to fraction form
    12,646,017.28/18,972,577.68 = 5,078,297.44/x
  3. Step 3: Cross multiply
    12,646,017.28x = 18,972,577.68 × 5,078,297.44
  4. Step 4: Simplify right side
    12,646,017.28x = 96,348,392,662,545.14
  5. Step 5: Solve for x
    x = 96,348,392,662,545.14/12,646,017.28
  6. Step 6: Final answer
    x = 7,618,872.45

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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.