Home / 13,667,627.80-18,861,720-7,556,449.96

Finding the Fourth Proportional to 13,667,627.80, 18,861,720 and 7,556,449.96

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Solution

The fourth proportional to 13,667,627.80, 18,861,720 and 7,556,449.96 is: 10,428,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,627.80 : 18,861,720 = 7,556,449.96 : x
  2. Step 2: Convert to fraction form
    13,667,627.80/18,861,720 = 7,556,449.96/x
  3. Step 3: Cross multiply
    13,667,627.80x = 18,861,720 × 7,556,449.96
  4. Step 4: Simplify right side
    13,667,627.80x = 142,527,643,339,531.19
  5. Step 5: Solve for x
    x = 142,527,643,339,531.19/13,667,627.80
  6. Step 6: Final answer
    x = 10,428,118.58

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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.