Home / 13,667,620.54-18,861,710-7,556,442.70

Finding the Fourth Proportional to 13,667,620.54, 18,861,710 and 7,556,442.70

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Solution

The fourth proportional to 13,667,620.54, 18,861,710 and 7,556,442.70 is: 10,428,108.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,620.54 : 18,861,710 = 7,556,442.70 : x
  2. Step 2: Convert to fraction form
    13,667,620.54/18,861,710 = 7,556,442.70/x
  3. Step 3: Cross multiply
    13,667,620.54x = 18,861,710 × 7,556,442.70
  4. Step 4: Simplify right side
    13,667,620.54x = 142,527,430,839,017
  5. Step 5: Solve for x
    x = 142,527,430,839,017/13,667,620.54
  6. Step 6: Final answer
    x = 10,428,108.57

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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.