Home / 20,689,009.56-28,548,789.48-11,522,505.24

Finding the Fourth Proportional to 20,689,009.56, 28,548,789.48 and 11,522,505.24

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Solution

The fourth proportional to 20,689,009.56, 28,548,789.48 and 11,522,505.24 is: 15,899,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,009.56 : 28,548,789.48 = 11,522,505.24 : x
  2. Step 2: Convert to fraction form
    20,689,009.56/28,548,789.48 = 11,522,505.24/x
  3. Step 3: Cross multiply
    20,689,009.56x = 28,548,789.48 × 11,522,505.24
  4. Step 4: Simplify right side
    20,689,009.56x = 328,953,576,378,956.88
  5. Step 5: Solve for x
    x = 328,953,576,378,956.88/20,689,009.56
  6. Step 6: Final answer
    x = 15,899,919.01

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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.