Home / 13,871,667.20-20,807,500.80-12,192,051.20

Finding the Fourth Proportional to 13,871,667.20, 20,807,500.80 and 12,192,051.20

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Solution

The fourth proportional to 13,871,667.20, 20,807,500.80 and 12,192,051.20 is: 18,288,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871,667.20 : 20,807,500.80 = 12,192,051.20 : x
  2. Step 2: Convert to fraction form
    13,871,667.20/20,807,500.80 = 12,192,051.20/x
  3. Step 3: Cross multiply
    13,871,667.20x = 20,807,500.80 × 12,192,051.20
  4. Step 4: Simplify right side
    13,871,667.20x = 253,686,115,097,640.97
  5. Step 5: Solve for x
    x = 253,686,115,097,640.97/13,871,667.20
  6. Step 6: Final answer
    x = 18,288,076.80

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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.