Home / 279,435,504,293.52-385,939,086,013.89-187,825,007,442.87

Finding the Fourth Proportional to 279,435,504,293.52, 385,939,086,013.89 and 187,825,007,442.87

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Solution

The fourth proportional to 279,435,504,293.52, 385,939,086,013.89 and 187,825,007,442.87 is: 259,412,317,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,435,504,293.52 : 385,939,086,013.89 = 187,825,007,442.87 : x
  2. Step 2: Convert to fraction form
    279,435,504,293.52/385,939,086,013.89 = 187,825,007,442.87/x
  3. Step 3: Cross multiply
    279,435,504,293.52x = 385,939,086,013.89 × 187,825,007,442.87
  4. Step 4: Simplify right side
    279,435,504,293.52x = 72,489,011,703,053,337,755,648
  5. Step 5: Solve for x
    x = 72,489,011,703,053,337,755,648/279,435,504,293.52
  6. Step 6: Final answer
    x = 259,412,317,294.19

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1.5x scale

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.