Home / 31,856,778.78-47,771,881.74-9,991,524.57

Finding the Fourth Proportional to 31,856,778.78, 47,771,881.74 and 9,991,524.57

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Solution

The fourth proportional to 31,856,778.78, 47,771,881.74 and 9,991,524.57 is: 14,983,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856,778.78 : 47,771,881.74 = 9,991,524.57 : x
  2. Step 2: Convert to fraction form
    31,856,778.78/47,771,881.74 = 9,991,524.57/x
  3. Step 3: Cross multiply
    31,856,778.78x = 47,771,881.74 × 9,991,524.57
  4. Step 4: Simplify right side
    31,856,778.78x = 477,313,930,160,344.38
  5. Step 5: Solve for x
    x = 477,313,930,160,344.38/31,856,778.78
  6. Step 6: Final answer
    x = 14,983,119.71

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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.