Home / 13,871,716.70-20,807,575.05-12,192,100.70

Finding the Fourth Proportional to 13,871,716.70, 20,807,575.05 and 12,192,100.70

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Solution

The fourth proportional to 13,871,716.70, 20,807,575.05 and 12,192,100.70 is: 18,288,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871,716.70 : 20,807,575.05 = 12,192,100.70 : x
  2. Step 2: Convert to fraction form
    13,871,716.70/20,807,575.05 = 12,192,100.70/x
  3. Step 3: Cross multiply
    13,871,716.70x = 20,807,575.05 × 12,192,100.70
  4. Step 4: Simplify right side
    13,871,716.70x = 253,688,050,332,407.53
  5. Step 5: Solve for x
    x = 253,688,050,332,407.53/13,871,716.70
  6. Step 6: Final answer
    x = 18,288,151.05

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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.