Home / 281,503,198.05-422,325,128.34-198,666,690.23

Finding the Fourth Proportional to 281,503,198.05, 422,325,128.34 and 198,666,690.23

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Solution

The fourth proportional to 281,503,198.05, 422,325,128.34 and 198,666,690.23 is: 298,049,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,503,198.05 : 422,325,128.34 = 198,666,690.23 : x
  2. Step 2: Convert to fraction form
    281,503,198.05/422,325,128.34 = 198,666,690.23/x
  3. Step 3: Cross multiply
    281,503,198.05x = 422,325,128.34 × 198,666,690.23
  4. Step 4: Simplify right side
    281,503,198.05x = 83,901,935,446,156,144
  5. Step 5: Solve for x
    x = 83,901,935,446,156,144/281,503,198.05
  6. Step 6: Final answer
    x = 298,049,670.58

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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.