Home / 13,667,618.53-18,861,707.23-7,556,440.69

Finding the Fourth Proportional to 13,667,618.53, 18,861,707.23 and 7,556,440.69

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Solution

The fourth proportional to 13,667,618.53, 18,861,707.23 and 7,556,440.69 is: 10,428,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,618.53 : 18,861,707.23 = 7,556,440.69 : x
  2. Step 2: Convert to fraction form
    13,667,618.53/18,861,707.23 = 7,556,440.69/x
  3. Step 3: Cross multiply
    13,667,618.53x = 18,861,707.23 × 7,556,440.69
  4. Step 4: Simplify right side
    13,667,618.53x = 142,527,372,042,830.22
  5. Step 5: Solve for x
    x = 142,527,372,042,830.22/13,667,618.53
  6. Step 6: Final answer
    x = 10,428,105.80

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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.