Home / 21,135,072.84-31,692,615.30-8,187,287.64

Finding the Fourth Proportional to 21,135,072.84, 31,692,615.30 and 8,187,287.64

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Solution

The fourth proportional to 21,135,072.84, 31,692,615.30 and 8,187,287.64 is: 12,277,060.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135,072.84 : 31,692,615.30 = 8,187,287.64 : x
  2. Step 2: Convert to fraction form
    21,135,072.84/31,692,615.30 = 8,187,287.64/x
  3. Step 3: Cross multiply
    21,135,072.84x = 31,692,615.30 × 8,187,287.64
  4. Step 4: Simplify right side
    21,135,072.84x = 259,476,557,524,964.88
  5. Step 5: Solve for x
    x = 259,476,557,524,964.88/21,135,072.84
  6. Step 6: Final answer
    x = 12,277,060.01

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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.