Home / 21,187,469.76-31,773,137.80-12,554,006.44

Finding the Fourth Proportional to 21,187,469.76, 31,773,137.80 and 12,554,006.44

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Solution

The fourth proportional to 21,187,469.76, 31,773,137.80 and 12,554,006.44 is: 18,826,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187,469.76 : 31,773,137.80 = 12,554,006.44 : x
  2. Step 2: Convert to fraction form
    21,187,469.76/31,773,137.80 = 12,554,006.44/x
  3. Step 3: Cross multiply
    21,187,469.76x = 31,773,137.80 × 12,554,006.44
  4. Step 4: Simplify right side
    21,187,469.76x = 398,880,176,560,207.44
  5. Step 5: Solve for x
    x = 398,880,176,560,207.44/21,187,469.76
  6. Step 6: Final answer
    x = 18,826,229.89

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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.