Home / 20,694,563.52-31,055,131.36-13,878,832.70

Finding the Fourth Proportional to 20,694,563.52, 31,055,131.36 and 13,878,832.70

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Solution

The fourth proportional to 20,694,563.52, 31,055,131.36 and 13,878,832.70 is: 20,827,159.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694,563.52 : 31,055,131.36 = 13,878,832.70 : x
  2. Step 2: Convert to fraction form
    20,694,563.52/31,055,131.36 = 13,878,832.70/x
  3. Step 3: Cross multiply
    20,694,563.52x = 31,055,131.36 × 13,878,832.70
  4. Step 4: Simplify right side
    20,694,563.52x = 431,008,972,431,990.75
  5. Step 5: Solve for x
    x = 431,008,972,431,990.75/20,694,563.52
  6. Step 6: Final answer
    x = 20,827,159.37

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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.