Home / 13,667,639.61-18,861,736.23-7,556,461.77

Finding the Fourth Proportional to 13,667,639.61, 18,861,736.23 and 7,556,461.77

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Solution

The fourth proportional to 13,667,639.61, 18,861,736.23 and 7,556,461.77 is: 10,428,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,639.61 : 18,861,736.23 = 7,556,461.77 : x
  2. Step 2: Convert to fraction form
    13,667,639.61/18,861,736.23 = 7,556,461.77/x
  3. Step 3: Cross multiply
    13,667,639.61x = 18,861,736.23 × 7,556,461.77
  4. Step 4: Simplify right side
    13,667,639.61x = 142,527,988,737,818.94
  5. Step 5: Solve for x
    x = 142,527,988,737,818.94/13,667,639.61
  6. Step 6: Final answer
    x = 10,428,134.84

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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.