Home / 31,517,723.81-47,179,620.94-20,564,328.07

Finding the Fourth Proportional to 31,517,723.81, 47,179,620.94 and 20,564,328.07

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Solution

The fourth proportional to 31,517,723.81, 47,179,620.94 and 20,564,328.07 is: 30,783,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517,723.81 : 47,179,620.94 = 20,564,328.07 : x
  2. Step 2: Convert to fraction form
    31,517,723.81/47,179,620.94 = 20,564,328.07/x
  3. Step 3: Cross multiply
    31,517,723.81x = 47,179,620.94 × 20,564,328.07
  4. Step 4: Simplify right side
    31,517,723.81x = 970,217,203,121,444.50
  5. Step 5: Solve for x
    x = 970,217,203,121,444.50/31,517,723.81
  6. Step 6: Final answer
    x = 30,783,225.62

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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.