Home / 31,517,728.62-47,179,628.13-20,564,332.88

Finding the Fourth Proportional to 31,517,728.62, 47,179,628.13 and 20,564,332.88

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Solution

The fourth proportional to 31,517,728.62, 47,179,628.13 and 20,564,332.88 is: 30,783,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517,728.62 : 47,179,628.13 = 20,564,332.88 : x
  2. Step 2: Convert to fraction form
    31,517,728.62/47,179,628.13 = 20,564,332.88/x
  3. Step 3: Cross multiply
    31,517,728.62x = 47,179,628.13 × 20,564,332.88
  4. Step 4: Simplify right side
    31,517,728.62x = 970,217,578,137,881
  5. Step 5: Solve for x
    x = 970,217,578,137,881/31,517,728.62
  6. Step 6: Final answer
    x = 30,783,232.82

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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.