Home / 154,952,013.30-213,857,025.84-117,721,028.31

Finding the Fourth Proportional to 154,952,013.30, 213,857,025.84 and 117,721,028.31

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Solution

The fourth proportional to 154,952,013.30, 213,857,025.84 and 117,721,028.31 is: 162,472,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,952,013.30 : 213,857,025.84 = 117,721,028.31 : x
  2. Step 2: Convert to fraction form
    154,952,013.30/213,857,025.84 = 117,721,028.31/x
  3. Step 3: Cross multiply
    154,952,013.30x = 213,857,025.84 × 117,721,028.31
  4. Step 4: Simplify right side
    154,952,013.30x = 25,175,468,993,203,044
  5. Step 5: Solve for x
    x = 25,175,468,993,203,044/154,952,013.30
  6. Step 6: Final answer
    x = 162,472,680.78

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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.