Home / 21,115,364.10-31,661,499.85-16,766,439.56

Finding the Fourth Proportional to 21,115,364.10, 31,661,499.85 and 16,766,439.56

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Solution

The fourth proportional to 21,115,364.10, 31,661,499.85 and 16,766,439.56 is: 25,140,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,364.10 : 31,661,499.85 = 16,766,439.56 : x
  2. Step 2: Convert to fraction form
    21,115,364.10/31,661,499.85 = 16,766,439.56/x
  3. Step 3: Cross multiply
    21,115,364.10x = 31,661,499.85 × 16,766,439.56
  4. Step 4: Simplify right side
    21,115,364.10x = 530,850,623,413,750.44
  5. Step 5: Solve for x
    x = 530,850,623,413,750.44/21,115,364.10
  6. Step 6: Final answer
    x = 25,140,491.11

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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.