Home / 18,372,993.70-27,559,490.55-8,142,754.45

Finding the Fourth Proportional to 18,372,993.70, 27,559,490.55 and 8,142,754.45

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Solution

The fourth proportional to 18,372,993.70, 27,559,490.55 and 8,142,754.45 is: 12,214,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,993.70 : 27,559,490.55 = 8,142,754.45 : x
  2. Step 2: Convert to fraction form
    18,372,993.70/27,559,490.55 = 8,142,754.45/x
  3. Step 3: Cross multiply
    18,372,993.70x = 27,559,490.55 × 8,142,754.45
  4. Step 4: Simplify right side
    18,372,993.70x = 224,410,164,315,745.47
  5. Step 5: Solve for x
    x = 224,410,164,315,745.47/18,372,993.70
  6. Step 6: Final answer
    x = 12,214,131.68

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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.