Home / 54,620,205.12-81,902,080.80-20,067,782.40

Finding the Fourth Proportional to 54,620,205.12, 81,902,080.80 and 20,067,782.40

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Solution

The fourth proportional to 54,620,205.12, 81,902,080.80 and 20,067,782.40 is: 30,091,302.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,620,205.12 : 81,902,080.80 = 20,067,782.40 : x
  2. Step 2: Convert to fraction form
    54,620,205.12/81,902,080.80 = 20,067,782.40/x
  3. Step 3: Cross multiply
    54,620,205.12x = 81,902,080.80 × 20,067,782.40
  4. Step 4: Simplify right side
    54,620,205.12x = 1,643,593,135,601,617.75
  5. Step 5: Solve for x
    x = 1,643,593,135,601,617.75/54,620,205.12
  6. Step 6: Final answer
    x = 30,091,302.88

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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.