Home / 285,151,585.76-393,441,736.30-161,392,262.88

Finding the Fourth Proportional to 285,151,585.76, 393,441,736.30 and 161,392,262.88

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Solution

The fourth proportional to 285,151,585.76, 393,441,736.30 and 161,392,262.88 is: 222,683,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,151,585.76 : 393,441,736.30 = 161,392,262.88 : x
  2. Step 2: Convert to fraction form
    285,151,585.76/393,441,736.30 = 161,392,262.88/x
  3. Step 3: Cross multiply
    285,151,585.76x = 393,441,736.30 × 161,392,262.88
  4. Step 4: Simplify right side
    285,151,585.76x = 63,498,452,132,489,760
  5. Step 5: Solve for x
    x = 63,498,452,132,489,760/285,151,585.76
  6. Step 6: Final answer
    x = 222,683,145.75

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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.