Home / 827,888,644.82-1,241,685,519.71-329,857,420.21

Finding the Fourth Proportional to 827,888,644.82, 1,241,685,519.71 and 329,857,420.21

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Solution

The fourth proportional to 827,888,644.82, 1,241,685,519.71 and 329,857,420.21 is: 494,727,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,888,644.82 : 1,241,685,519.71 = 329,857,420.21 : x
  2. Step 2: Convert to fraction form
    827,888,644.82/1,241,685,519.71 = 329,857,420.21/x
  3. Step 3: Cross multiply
    827,888,644.82x = 1,241,685,519.71 × 329,857,420.21
  4. Step 4: Simplify right side
    827,888,644.82x = 409,579,182,238,900,160
  5. Step 5: Solve for x
    x = 409,579,182,238,900,160/827,888,644.82
  6. Step 6: Final answer
    x = 494,727,382.48

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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.