Home / 18,128,249.11-27,174,191.85-8,419,680.20

Finding the Fourth Proportional to 18,128,249.11, 27,174,191.85 and 8,419,680.20

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Solution

The fourth proportional to 18,128,249.11, 27,174,191.85 and 8,419,680.20 is: 12,621,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128,249.11 : 27,174,191.85 = 8,419,680.20 : x
  2. Step 2: Convert to fraction form
    18,128,249.11/27,174,191.85 = 8,419,680.20/x
  3. Step 3: Cross multiply
    18,128,249.11x = 27,174,191.85 × 8,419,680.20
  4. Step 4: Simplify right side
    18,128,249.11x = 228,798,005,070,446.38
  5. Step 5: Solve for x
    x = 228,798,005,070,446.38/18,128,249.11
  6. Step 6: Final answer
    x = 12,621,075.74

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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.