Home / 13,871,719.70-20,807,579.55-12,192,103.70

Finding the Fourth Proportional to 13,871,719.70, 20,807,579.55 and 12,192,103.70

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Solution

The fourth proportional to 13,871,719.70, 20,807,579.55 and 12,192,103.70 is: 18,288,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871,719.70 : 20,807,579.55 = 12,192,103.70 : x
  2. Step 2: Convert to fraction form
    13,871,719.70/20,807,579.55 = 12,192,103.70/x
  3. Step 3: Cross multiply
    13,871,719.70x = 20,807,579.55 × 12,192,103.70
  4. Step 4: Simplify right side
    13,871,719.70x = 253,688,167,619,599.34
  5. Step 5: Solve for x
    x = 253,688,167,619,599.34/13,871,719.70
  6. Step 6: Final answer
    x = 18,288,155.55

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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.