Home / 21,449,936.40-29,601,524.88-13,077,789.36

Finding the Fourth Proportional to 21,449,936.40, 29,601,524.88 and 13,077,789.36

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Solution

The fourth proportional to 21,449,936.40, 29,601,524.88 and 13,077,789.36 is: 18,047,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449,936.40 : 29,601,524.88 = 13,077,789.36 : x
  2. Step 2: Convert to fraction form
    21,449,936.40/29,601,524.88 = 13,077,789.36/x
  3. Step 3: Cross multiply
    21,449,936.40x = 29,601,524.88 × 13,077,789.36
  4. Step 4: Simplify right side
    21,449,936.40x = 387,122,507,115,439.25
  5. Step 5: Solve for x
    x = 387,122,507,115,439.25/21,449,936.40
  6. Step 6: Final answer
    x = 18,047,722.84

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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.