Home / 168,507,979.20-252,384,055.20-138,274,891.20

Finding the Fourth Proportional to 168,507,979.20, 252,384,055.20 and 138,274,891.20

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Solution

The fourth proportional to 168,507,979.20, 252,384,055.20 and 138,274,891.20 is: 207,102,227.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,507,979.20 : 252,384,055.20 = 138,274,891.20 : x
  2. Step 2: Convert to fraction form
    168,507,979.20/252,384,055.20 = 138,274,891.20/x
  3. Step 3: Cross multiply
    168,507,979.20x = 252,384,055.20 × 138,274,891.20
  4. Step 4: Simplify right side
    168,507,979.20x = 34,898,377,773,394,788
  5. Step 5: Solve for x
    x = 34,898,377,773,394,788/168,507,979.20
  6. Step 6: Final answer
    x = 207,102,227.08

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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.