Home / 281,026,642.38-387,857,352.11-161,926,432.82

Finding the Fourth Proportional to 281,026,642.38, 387,857,352.11 and 161,926,432.82

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Solution

The fourth proportional to 281,026,642.38, 387,857,352.11 and 161,926,432.82 is: 223,481,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,026,642.38 : 387,857,352.11 = 161,926,432.82 : x
  2. Step 2: Convert to fraction form
    281,026,642.38/387,857,352.11 = 161,926,432.82/x
  3. Step 3: Cross multiply
    281,026,642.38x = 387,857,352.11 × 161,926,432.82
  4. Step 4: Simplify right side
    281,026,642.38x = 62,804,357,470,183,000
  5. Step 5: Solve for x
    x = 62,804,357,470,183,000/281,026,642.38
  6. Step 6: Final answer
    x = 223,481,862.57

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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.