Home / 31,540,364.20-47,310,546.30-20,790,821.80

Finding the Fourth Proportional to 31,540,364.20, 47,310,546.30 and 20,790,821.80

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Solution

The fourth proportional to 31,540,364.20, 47,310,546.30 and 20,790,821.80 is: 31,186,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540,364.20 : 47,310,546.30 = 20,790,821.80 : x
  2. Step 2: Convert to fraction form
    31,540,364.20/47,310,546.30 = 20,790,821.80/x
  3. Step 3: Cross multiply
    31,540,364.20x = 47,310,546.30 × 20,790,821.80
  4. Step 4: Simplify right side
    31,540,364.20x = 983,625,137,383,949.38
  5. Step 5: Solve for x
    x = 983,625,137,383,949.38/31,540,364.20
  6. Step 6: Final answer
    x = 31,186,232.70

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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.