Home / 13,667,620.79-18,861,710.34-7,556,442.95

Finding the Fourth Proportional to 13,667,620.79, 18,861,710.34 and 7,556,442.95

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Solution

The fourth proportional to 13,667,620.79, 18,861,710.34 and 7,556,442.95 is: 10,428,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,620.79 : 18,861,710.34 = 7,556,442.95 : x
  2. Step 2: Convert to fraction form
    13,667,620.79/18,861,710.34 = 7,556,442.95/x
  3. Step 3: Cross multiply
    13,667,620.79x = 18,861,710.34 × 7,556,442.95
  4. Step 4: Simplify right side
    13,667,620.79x = 142,527,438,123,635.09
  5. Step 5: Solve for x
    x = 142,527,438,123,635.09/13,667,620.79
  6. Step 6: Final answer
    x = 10,428,108.91

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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.