Home / 279,960,438,456.34-419,893,292,633.22-78,455,797,042.73

Finding the Fourth Proportional to 279,960,438,456.34, 419,893,292,633.22 and 78,455,797,042.73

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Solution

The fourth proportional to 279,960,438,456.34, 419,893,292,633.22 and 78,455,797,042.73 is: 117,670,422,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,960,438,456.34 : 419,893,292,633.22 = 78,455,797,042.73 : x
  2. Step 2: Convert to fraction form
    279,960,438,456.34/419,893,292,633.22 = 78,455,797,042.73/x
  3. Step 3: Cross multiply
    279,960,438,456.34x = 419,893,292,633.22 × 78,455,797,042.73
  4. Step 4: Simplify right side
    279,960,438,456.34x = 32,943,062,946,433,860,632,576
  5. Step 5: Solve for x
    x = 32,943,062,946,433,860,632,576/279,960,438,456.34
  6. Step 6: Final answer
    x = 117,670,422,035.62

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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.