Home / 12,861,931.20-19,259,719.20-10,207,723.20

Finding the Fourth Proportional to 12,861,931.20, 19,259,719.20 and 10,207,723.20

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Solution

The fourth proportional to 12,861,931.20, 19,259,719.20 and 10,207,723.20 is: 15,285,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,931.20 : 19,259,719.20 = 10,207,723.20 : x
  2. Step 2: Convert to fraction form
    12,861,931.20/19,259,719.20 = 10,207,723.20/x
  3. Step 3: Cross multiply
    12,861,931.20x = 19,259,719.20 × 10,207,723.20
  4. Step 4: Simplify right side
    12,861,931.20x = 196,597,882,503,325.41
  5. Step 5: Solve for x
    x = 196,597,882,503,325.41/12,861,931.20
  6. Step 6: Final answer
    x = 15,285,253.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.