Home / 31,517,728.64-47,179,628.19-20,564,332.94

Finding the Fourth Proportional to 31,517,728.64, 47,179,628.19 and 20,564,332.94

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Solution

The fourth proportional to 31,517,728.64, 47,179,628.19 and 20,564,332.94 is: 30,783,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517,728.64 : 47,179,628.19 = 20,564,332.94 : x
  2. Step 2: Convert to fraction form
    31,517,728.64/47,179,628.19 = 20,564,332.94/x
  3. Step 3: Cross multiply
    31,517,728.64x = 47,179,628.19 × 20,564,332.94
  4. Step 4: Simplify right side
    31,517,728.64x = 970,217,581,848,671.38
  5. Step 5: Solve for x
    x = 970,217,581,848,671.38/31,517,728.64
  6. Step 6: Final answer
    x = 30,783,232.93

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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.