Home / 21,448,321.56-29,601,919.80-13,080,546.83

Finding the Fourth Proportional to 21,448,321.56, 29,601,919.80 and 13,080,546.83

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Solution

The fourth proportional to 21,448,321.56, 29,601,919.80 and 13,080,546.83 is: 18,053,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448,321.56 : 29,601,919.80 = 13,080,546.83 : x
  2. Step 2: Convert to fraction form
    21,448,321.56/29,601,919.80 = 13,080,546.83/x
  3. Step 3: Cross multiply
    21,448,321.56x = 29,601,919.80 × 13,080,546.83
  4. Step 4: Simplify right side
    21,448,321.56x = 387,209,298,275,809
  5. Step 5: Solve for x
    x = 387,209,298,275,809/21,448,321.56
  6. Step 6: Final answer
    x = 18,053,128.18

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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.