Home / 12,982,340.21-17,821,814.13-11,143,606.19

Finding the Fourth Proportional to 12,982,340.21, 17,821,814.13 and 11,143,606.19

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Solution

The fourth proportional to 12,982,340.21, 17,821,814.13 and 11,143,606.19 is: 15,297,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,340.21 : 17,821,814.13 = 11,143,606.19 : x
  2. Step 2: Convert to fraction form
    12,982,340.21/17,821,814.13 = 11,143,606.19/x
  3. Step 3: Cross multiply
    12,982,340.21x = 17,821,814.13 × 11,143,606.19
  4. Step 4: Simplify right side
    12,982,340.21x = 198,599,278,166,988.41
  5. Step 5: Solve for x
    x = 198,599,278,166,988.41/12,982,340.21
  6. Step 6: Final answer
    x = 15,297,648.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.