Home / 279,960,438,467.84-419,893,292,650.46-78,455,797,054.16

Finding the Fourth Proportional to 279,960,438,467.84, 419,893,292,650.46 and 78,455,797,054.16

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Solution

The fourth proportional to 279,960,438,467.84, 419,893,292,650.46 and 78,455,797,054.16 is: 117,670,422,052.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,960,438,467.84 : 419,893,292,650.46 = 78,455,797,054.16 : x
  2. Step 2: Convert to fraction form
    279,960,438,467.84/419,893,292,650.46 = 78,455,797,054.16/x
  3. Step 3: Cross multiply
    279,960,438,467.84x = 419,893,292,650.46 × 78,455,797,054.16
  4. Step 4: Simplify right side
    279,960,438,467.84x = 32,943,062,952,587,504,386,048
  5. Step 5: Solve for x
    x = 32,943,062,952,587,504,386,048/279,960,438,467.84
  6. Step 6: Final answer
    x = 117,670,422,052.76

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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.