Home / 172,715,921.73-259,145,490.92-75,621,514.05

Finding the Fourth Proportional to 172,715,921.73, 259,145,490.92 and 75,621,514.05

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Solution

The fourth proportional to 172,715,921.73, 259,145,490.92 and 75,621,514.05 is: 113,463,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,715,921.73 : 259,145,490.92 = 75,621,514.05 : x
  2. Step 2: Convert to fraction form
    172,715,921.73/259,145,490.92 = 75,621,514.05/x
  3. Step 3: Cross multiply
    172,715,921.73x = 259,145,490.92 × 75,621,514.05
  4. Step 4: Simplify right side
    172,715,921.73x = 19,596,974,382,222,820
  5. Step 5: Solve for x
    x = 19,596,974,382,222,820/172,715,921.73
  6. Step 6: Final answer
    x = 113,463,623.89

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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.