Home / 31,856,766.78-47,771,863.74-9,991,512.57

Finding the Fourth Proportional to 31,856,766.78, 47,771,863.74 and 9,991,512.57

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Solution

The fourth proportional to 31,856,766.78, 47,771,863.74 and 9,991,512.57 is: 14,983,101.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856,766.78 : 47,771,863.74 = 9,991,512.57 : x
  2. Step 2: Convert to fraction form
    31,856,766.78/47,771,863.74 = 9,991,512.57/x
  3. Step 3: Cross multiply
    31,856,766.78x = 47,771,863.74 × 9,991,512.57
  4. Step 4: Simplify right side
    31,856,766.78x = 477,313,177,050,537.25
  5. Step 5: Solve for x
    x = 477,313,177,050,537.25/31,856,766.78
  6. Step 6: Final answer
    x = 14,983,101.72

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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.