Home / 18,284,709.12-27,427,296.92-12,603,408

Finding the Fourth Proportional to 18,284,709.12, 27,427,296.92 and 12,603,408

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Solution

The fourth proportional to 18,284,709.12, 27,427,296.92 and 12,603,408 is: 18,905,272.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,284,709.12 : 27,427,296.92 = 12,603,408 : x
  2. Step 2: Convert to fraction form
    18,284,709.12/27,427,296.92 = 12,603,408/x
  3. Step 3: Cross multiply
    18,284,709.12x = 27,427,296.92 × 12,603,408
  4. Step 4: Simplify right side
    18,284,709.12x = 345,677,413,419,903.38
  5. Step 5: Solve for x
    x = 345,677,413,419,903.38/18,284,709.12
  6. Step 6: Final answer
    x = 18,905,272.77

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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.