Home / 20,278,874,481.88-27,981,146,521.20-11,702,172,218.48

Finding the Fourth Proportional to 20,278,874,481.88, 27,981,146,521.20 and 11,702,172,218.48

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Solution

The fourth proportional to 20,278,874,481.88, 27,981,146,521.20 and 11,702,172,218.48 is: 16,146,862,379.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,874,481.88 : 27,981,146,521.20 = 11,702,172,218.48 : x
  2. Step 2: Convert to fraction form
    20,278,874,481.88/27,981,146,521.20 = 11,702,172,218.48/x
  3. Step 3: Cross multiply
    20,278,874,481.88x = 27,981,146,521.20 × 11,702,172,218.48
  4. Step 4: Simplify right side
    20,278,874,481.88x = 327,440,195,461,604,966,400
  5. Step 5: Solve for x
    x = 327,440,195,461,604,966,400/20,278,874,481.88
  6. Step 6: Final answer
    x = 16,146,862,379.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.