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Finding the Fourth Proportional to 18,339,163.40, 27,508,745.10 and 9,836,107.40

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Solution

The fourth proportional to 18,339,163.40, 27,508,745.10 and 9,836,107.40 is: 14,754,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339,163.40 : 27,508,745.10 = 9,836,107.40 : x
  2. Step 2: Convert to fraction form
    18,339,163.40/27,508,745.10 = 9,836,107.40/x
  3. Step 3: Cross multiply
    18,339,163.40x = 27,508,745.10 × 9,836,107.40
  4. Step 4: Simplify right side
    18,339,163.40x = 270,578,971,242,823.75
  5. Step 5: Solve for x
    x = 270,578,971,242,823.75/18,339,163.40
  6. Step 6: Final answer
    x = 14,754,161.10

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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.