Home / 13,115,143.16-18,100,198.78-9,801,682.64

Finding the Fourth Proportional to 13,115,143.16, 18,100,198.78 and 9,801,682.64

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Solution

The fourth proportional to 13,115,143.16, 18,100,198.78 and 9,801,682.64 is: 13,527,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115,143.16 : 18,100,198.78 = 9,801,682.64 : x
  2. Step 2: Convert to fraction form
    13,115,143.16/18,100,198.78 = 9,801,682.64/x
  3. Step 3: Cross multiply
    13,115,143.16x = 18,100,198.78 × 9,801,682.64
  4. Step 4: Simplify right side
    13,115,143.16x = 177,412,404,162,475.19
  5. Step 5: Solve for x
    x = 177,412,404,162,475.19/13,115,143.16
  6. Step 6: Final answer
    x = 13,527,294.52

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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.