Home / 13,667,628.67-18,861,721.20-7,556,450.83

Finding the Fourth Proportional to 13,667,628.67, 18,861,721.20 and 7,556,450.83

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Solution

The fourth proportional to 13,667,628.67, 18,861,721.20 and 7,556,450.83 is: 10,428,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,628.67 : 18,861,721.20 = 7,556,450.83 : x
  2. Step 2: Convert to fraction form
    13,667,628.67/18,861,721.20 = 7,556,450.83/x
  3. Step 3: Cross multiply
    13,667,628.67x = 18,861,721.20 × 7,556,450.83
  4. Step 4: Simplify right side
    13,667,628.67x = 142,527,668,816,968.59
  5. Step 5: Solve for x
    x = 142,527,668,816,968.59/13,667,628.67
  6. Step 6: Final answer
    x = 10,428,119.78

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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.