Home / 13,871,721.70-20,807,582.55-12,192,105.70

Finding the Fourth Proportional to 13,871,721.70, 20,807,582.55 and 12,192,105.70

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Solution

The fourth proportional to 13,871,721.70, 20,807,582.55 and 12,192,105.70 is: 18,288,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871,721.70 : 20,807,582.55 = 12,192,105.70 : x
  2. Step 2: Convert to fraction form
    13,871,721.70/20,807,582.55 = 12,192,105.70/x
  3. Step 3: Cross multiply
    13,871,721.70x = 20,807,582.55 × 12,192,105.70
  4. Step 4: Simplify right side
    13,871,721.70x = 253,688,245,811,075.53
  5. Step 5: Solve for x
    x = 253,688,245,811,075.53/13,871,721.70
  6. Step 6: Final answer
    x = 18,288,158.55

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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.