Home / 20,242,105.12-27,934,508.40-11,074,944.64

Finding the Fourth Proportional to 20,242,105.12, 27,934,508.40 and 11,074,944.64

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Solution

The fourth proportional to 20,242,105.12, 27,934,508.40 and 11,074,944.64 is: 15,283,644.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242,105.12 : 27,934,508.40 = 11,074,944.64 : x
  2. Step 2: Convert to fraction form
    20,242,105.12/27,934,508.40 = 11,074,944.64/x
  3. Step 3: Cross multiply
    20,242,105.12x = 27,934,508.40 × 11,074,944.64
  4. Step 4: Simplify right side
    20,242,105.12x = 309,373,134,075,615
  5. Step 5: Solve for x
    x = 309,373,134,075,615/20,242,105.12
  6. Step 6: Final answer
    x = 15,283,644.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.