Home / 31,511,540.40-47,267,310.60-8,792,401.20

Finding the Fourth Proportional to 31,511,540.40, 47,267,310.60 and 8,792,401.20

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Solution

The fourth proportional to 31,511,540.40, 47,267,310.60 and 8,792,401.20 is: 13,188,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511,540.40 : 47,267,310.60 = 8,792,401.20 : x
  2. Step 2: Convert to fraction form
    31,511,540.40/47,267,310.60 = 8,792,401.20/x
  3. Step 3: Cross multiply
    31,511,540.40x = 47,267,310.60 × 8,792,401.20
  4. Step 4: Simplify right side
    31,511,540.40x = 415,593,158,440,212.69
  5. Step 5: Solve for x
    x = 415,593,158,440,212.69/31,511,540.40
  6. Step 6: Final answer
    x = 13,188,601.80

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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.