Home / 13,667,634.87-18,861,515.10-7,472,688.63

Finding the Fourth Proportional to 13,667,634.87, 18,861,515.10 and 7,472,688.63

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Solution

The fourth proportional to 13,667,634.87, 18,861,515.10 and 7,472,688.63 is: 10,312,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,634.87 : 18,861,515.10 = 7,472,688.63 : x
  2. Step 2: Convert to fraction form
    13,667,634.87/18,861,515.10 = 7,472,688.63/x
  3. Step 3: Cross multiply
    13,667,634.87x = 18,861,515.10 × 7,472,688.63
  4. Step 4: Simplify right side
    13,667,634.87x = 140,946,229,432,343.31
  5. Step 5: Solve for x
    x = 140,946,229,432,343.31/13,667,634.87
  6. Step 6: Final answer
    x = 10,312,408.17

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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.