Home / 20,885,673.56-31,328,467.20-11,783,639.25

Finding the Fourth Proportional to 20,885,673.56, 31,328,467.20 and 11,783,639.25

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Solution

The fourth proportional to 20,885,673.56, 31,328,467.20 and 11,783,639.25 is: 17,675,434.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,673.56 : 31,328,467.20 = 11,783,639.25 : x
  2. Step 2: Convert to fraction form
    20,885,673.56/31,328,467.20 = 11,783,639.25/x
  3. Step 3: Cross multiply
    20,885,673.56x = 31,328,467.20 × 11,783,639.25
  4. Step 4: Simplify right side
    20,885,673.56x = 369,163,355,740,257.56
  5. Step 5: Solve for x
    x = 369,163,355,740,257.56/20,885,673.56
  6. Step 6: Final answer
    x = 17,675,434.54

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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.