Home / 279,960,438,470.84-419,893,292,654.96-78,455,797,057.16

Finding the Fourth Proportional to 279,960,438,470.84, 419,893,292,654.96 and 78,455,797,057.16

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Solution

The fourth proportional to 279,960,438,470.84, 419,893,292,654.96 and 78,455,797,057.16 is: 117,670,422,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,960,438,470.84 : 419,893,292,654.96 = 78,455,797,057.16 : x
  2. Step 2: Convert to fraction form
    279,960,438,470.84/419,893,292,654.96 = 78,455,797,057.16/x
  3. Step 3: Cross multiply
    279,960,438,470.84x = 419,893,292,654.96 × 78,455,797,057.16
  4. Step 4: Simplify right side
    279,960,438,470.84x = 32,943,062,954,200,235,245,568
  5. Step 5: Solve for x
    x = 32,943,062,954,200,235,245,568/279,960,438,470.84
  6. Step 6: Final answer
    x = 117,670,422,057.26

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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.