Home / 280,252,698-386,760,472.77-161,175,383.24

Finding the Fourth Proportional to 280,252,698, 386,760,472.77 and 161,175,383.24

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Solution

The fourth proportional to 280,252,698, 386,760,472.77 and 161,175,383.24 is: 222,428,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,252,698 : 386,760,472.77 = 161,175,383.24 : x
  2. Step 2: Convert to fraction form
    280,252,698/386,760,472.77 = 161,175,383.24/x
  3. Step 3: Cross multiply
    280,252,698x = 386,760,472.77 × 161,175,383.24
  4. Step 4: Simplify right side
    280,252,698x = 62,336,267,420,788,336
  5. Step 5: Solve for x
    x = 62,336,267,420,788,336/280,252,698
  6. Step 6: Final answer
    x = 222,428,786.11

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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.