Home / 18,678,610.71-27,991,579.08-8,820,155.37

Finding the Fourth Proportional to 18,678,610.71, 27,991,579.08 and 8,820,155.37

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Solution

The fourth proportional to 18,678,610.71, 27,991,579.08 and 8,820,155.37 is: 13,217,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,610.71 : 27,991,579.08 = 8,820,155.37 : x
  2. Step 2: Convert to fraction form
    18,678,610.71/27,991,579.08 = 8,820,155.37/x
  3. Step 3: Cross multiply
    18,678,610.71x = 27,991,579.08 × 8,820,155.37
  4. Step 4: Simplify right side
    18,678,610.71x = 246,890,076,537,241.62
  5. Step 5: Solve for x
    x = 246,890,076,537,241.62/18,678,610.71
  6. Step 6: Final answer
    x = 13,217,796.57

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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.