Home / 281,026,649.39-387,857,361.78-161,926,439.78

Finding the Fourth Proportional to 281,026,649.39, 387,857,361.78 and 161,926,439.78

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Solution

The fourth proportional to 281,026,649.39, 387,857,361.78 and 161,926,439.78 is: 223,481,872.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,026,649.39 : 387,857,361.78 = 161,926,439.78 : x
  2. Step 2: Convert to fraction form
    281,026,649.39/387,857,361.78 = 161,926,439.78/x
  3. Step 3: Cross multiply
    281,026,649.39x = 387,857,361.78 × 161,926,439.78
  4. Step 4: Simplify right side
    281,026,649.39x = 62,804,361,736,468,480
  5. Step 5: Solve for x
    x = 62,804,361,736,468,480/281,026,649.39
  6. Step 6: Final answer
    x = 223,481,872.18

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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.