Home / 31,378,380.57-47,040,614.42-10,905,440.49

Finding the Fourth Proportional to 31,378,380.57, 47,040,614.42 and 10,905,440.49

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Solution

The fourth proportional to 31,378,380.57, 47,040,614.42 and 10,905,440.49 is: 16,348,792.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378,380.57 : 47,040,614.42 = 10,905,440.49 : x
  2. Step 2: Convert to fraction form
    31,378,380.57/47,040,614.42 = 10,905,440.49/x
  3. Step 3: Cross multiply
    31,378,380.57x = 47,040,614.42 × 10,905,440.49
  4. Step 4: Simplify right side
    31,378,380.57x = 512,998,621,115,818.69
  5. Step 5: Solve for x
    x = 512,998,621,115,818.69/31,378,380.57
  6. Step 6: Final answer
    x = 16,348,792.12

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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.