Home / 213,025,836.60-319,318,305.30-115,776,070.20

Finding the Fourth Proportional to 213,025,836.60, 319,318,305.30 and 115,776,070.20

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Solution

The fourth proportional to 213,025,836.60, 319,318,305.30 and 115,776,070.20 is: 173,544,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,025,836.60 : 319,318,305.30 = 115,776,070.20 : x
  2. Step 2: Convert to fraction form
    213,025,836.60/319,318,305.30 = 115,776,070.20/x
  3. Step 3: Cross multiply
    213,025,836.60x = 319,318,305.30 × 115,776,070.20
  4. Step 4: Simplify right side
    213,025,836.60x = 36,969,418,530,557,832
  5. Step 5: Solve for x
    x = 36,969,418,530,557,832/213,025,836.60
  6. Step 6: Final answer
    x = 173,544,294.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.