Home / 18,379,128.49-27,571,687.38-5,426,588.45

Finding the Fourth Proportional to 18,379,128.49, 27,571,687.38 and 5,426,588.45

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Solution

The fourth proportional to 18,379,128.49, 27,571,687.38 and 5,426,588.45 is: 8,140,766.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,128.49 : 27,571,687.38 = 5,426,588.45 : x
  2. Step 2: Convert to fraction form
    18,379,128.49/27,571,687.38 = 5,426,588.45/x
  3. Step 3: Cross multiply
    18,379,128.49x = 27,571,687.38 × 5,426,588.45
  4. Step 4: Simplify right side
    18,379,128.49x = 149,620,200,352,247.97
  5. Step 5: Solve for x
    x = 149,620,200,352,247.97/18,379,128.49
  6. Step 6: Final answer
    x = 8,140,766.87

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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.