Home / 280,252,698.50-386,760,473.46-161,175,383.74

Finding the Fourth Proportional to 280,252,698.50, 386,760,473.46 and 161,175,383.74

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Solution

The fourth proportional to 280,252,698.50, 386,760,473.46 and 161,175,383.74 is: 222,428,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,252,698.50 : 386,760,473.46 = 161,175,383.74 : x
  2. Step 2: Convert to fraction form
    280,252,698.50/386,760,473.46 = 161,175,383.74/x
  3. Step 3: Cross multiply
    280,252,698.50x = 386,760,473.46 × 161,175,383.74
  4. Step 4: Simplify right side
    280,252,698.50x = 62,336,267,725,379,584
  5. Step 5: Solve for x
    x = 62,336,267,725,379,584/280,252,698.50
  6. Step 6: Final answer
    x = 222,428,786.81

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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.