Home / 210,026,719.80-315,040,079.70-181,305,286.20

Finding the Fourth Proportional to 210,026,719.80, 315,040,079.70 and 181,305,286.20

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Solution

The fourth proportional to 210,026,719.80, 315,040,079.70 and 181,305,286.20 is: 271,957,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,026,719.80 : 315,040,079.70 = 181,305,286.20 : x
  2. Step 2: Convert to fraction form
    210,026,719.80/315,040,079.70 = 181,305,286.20/x
  3. Step 3: Cross multiply
    210,026,719.80x = 315,040,079.70 × 181,305,286.20
  4. Step 4: Simplify right side
    210,026,719.80x = 57,118,431,814,479,304
  5. Step 5: Solve for x
    x = 57,118,431,814,479,304/210,026,719.80
  6. Step 6: Final answer
    x = 271,957,929.30

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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.