Home / 20,373,936.82-28,113,480.95-13,772,887.89

Finding the Fourth Proportional to 20,373,936.82, 28,113,480.95 and 13,772,887.89

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Solution

The fourth proportional to 20,373,936.82, 28,113,480.95 and 13,772,887.89 is: 19,004,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,936.82 : 28,113,480.95 = 13,772,887.89 : x
  2. Step 2: Convert to fraction form
    20,373,936.82/28,113,480.95 = 13,772,887.89/x
  3. Step 3: Cross multiply
    20,373,936.82x = 28,113,480.95 × 13,772,887.89
  4. Step 4: Simplify right side
    20,373,936.82x = 387,203,821,322,000.69
  5. Step 5: Solve for x
    x = 387,203,821,322,000.69/20,373,936.82
  6. Step 6: Final answer
    x = 19,004,860.22

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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.