Home / 31,517,729.19-47,179,629.03-20,564,333.51

Finding the Fourth Proportional to 31,517,729.19, 47,179,629.03 and 20,564,333.51

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Solution

The fourth proportional to 31,517,729.19, 47,179,629.03 and 20,564,333.51 is: 30,783,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517,729.19 : 47,179,629.03 = 20,564,333.51 : x
  2. Step 2: Convert to fraction form
    31,517,729.19/47,179,629.03 = 20,564,333.51/x
  3. Step 3: Cross multiply
    31,517,729.19x = 47,179,629.03 × 20,564,333.51
  4. Step 4: Simplify right side
    31,517,729.19x = 970,217,626,015,099.62
  5. Step 5: Solve for x
    x = 970,217,626,015,099.62/31,517,729.19
  6. Step 6: Final answer
    x = 30,783,233.78

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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.