Home / 20,885,664.94-31,328,454.17-11,783,630.54

Finding the Fourth Proportional to 20,885,664.94, 31,328,454.17 and 11,783,630.54

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Solution

The fourth proportional to 20,885,664.94, 31,328,454.17 and 11,783,630.54 is: 17,675,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,664.94 : 31,328,454.17 = 11,783,630.54 : x
  2. Step 2: Convert to fraction form
    20,885,664.94/31,328,454.17 = 11,783,630.54/x
  3. Step 3: Cross multiply
    20,885,664.94x = 31,328,454.17 × 11,783,630.54
  4. Step 4: Simplify right side
    20,885,664.94x = 369,162,929,436,382.56
  5. Step 5: Solve for x
    x = 369,162,929,436,382.56/20,885,664.94
  6. Step 6: Final answer
    x = 17,675,421.42

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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.