Home / 154,557,424.88-213,294,046.20-84,941,540.72

Finding the Fourth Proportional to 154,557,424.88, 213,294,046.20 and 84,941,540.72

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Solution

The fourth proportional to 154,557,424.88, 213,294,046.20 and 84,941,540.72 is: 117,221,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557,424.88 : 213,294,046.20 = 84,941,540.72 : x
  2. Step 2: Convert to fraction form
    154,557,424.88/213,294,046.20 = 84,941,540.72/x
  3. Step 3: Cross multiply
    154,557,424.88x = 213,294,046.20 × 84,941,540.72
  4. Step 4: Simplify right side
    154,557,424.88x = 18,117,524,910,630,860
  5. Step 5: Solve for x
    x = 18,117,524,910,630,860/154,557,424.88
  6. Step 6: Final answer
    x = 117,221,964.10

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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.