Home / 20,128,662.88-27,773,864.85-11,871,309.04

Finding the Fourth Proportional to 20,128,662.88, 27,773,864.85 and 11,871,309.04

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Solution

The fourth proportional to 20,128,662.88, 27,773,864.85 and 11,871,309.04 is: 16,380,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,662.88 : 27,773,864.85 = 11,871,309.04 : x
  2. Step 2: Convert to fraction form
    20,128,662.88/27,773,864.85 = 11,871,309.04/x
  3. Step 3: Cross multiply
    20,128,662.88x = 27,773,864.85 × 11,871,309.04
  4. Step 4: Simplify right side
    20,128,662.88x = 329,712,132,800,108.56
  5. Step 5: Solve for x
    x = 329,712,132,800,108.56/20,128,662.88
  6. Step 6: Final answer
    x = 16,380,230.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.