Home / 281,026,221.68-387,856,751.58-161,926,003.42

Finding the Fourth Proportional to 281,026,221.68, 387,856,751.58 and 161,926,003.42

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Solution

The fourth proportional to 281,026,221.68, 387,856,751.58 and 161,926,003.42 is: 223,481,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,026,221.68 : 387,856,751.58 = 161,926,003.42 : x
  2. Step 2: Convert to fraction form
    281,026,221.68/387,856,751.58 = 161,926,003.42/x
  3. Step 3: Cross multiply
    281,026,221.68x = 387,856,751.58 × 161,926,003.42
  4. Step 4: Simplify right side
    281,026,221.68x = 62,804,093,682,813,160
  5. Step 5: Solve for x
    x = 62,804,093,682,813,160/281,026,221.68
  6. Step 6: Final answer
    x = 223,481,258.47

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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.