Home / 18,379,143.47-27,571,709.88-5,426,603.44

Finding the Fourth Proportional to 18,379,143.47, 27,571,709.88 and 5,426,603.44

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Solution

The fourth proportional to 18,379,143.47, 27,571,709.88 and 5,426,603.44 is: 8,140,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,143.47 : 27,571,709.88 = 5,426,603.44 : x
  2. Step 2: Convert to fraction form
    18,379,143.47/27,571,709.88 = 5,426,603.44/x
  3. Step 3: Cross multiply
    18,379,143.47x = 27,571,709.88 × 5,426,603.44
  4. Step 4: Simplify right side
    18,379,143.47x = 149,620,735,612,560.72
  5. Step 5: Solve for x
    x = 149,620,735,612,560.72/18,379,143.47
  6. Step 6: Final answer
    x = 8,140,789.36

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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.