Home / 31,638,644.50-43,665,988.53-20,037,286.66

Finding the Fourth Proportional to 31,638,644.50, 43,665,988.53 and 20,037,286.66

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Solution

The fourth proportional to 31,638,644.50, 43,665,988.53 and 20,037,286.66 is: 27,654,406.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638,644.50 : 43,665,988.53 = 20,037,286.66 : x
  2. Step 2: Convert to fraction form
    31,638,644.50/43,665,988.53 = 20,037,286.66/x
  3. Step 3: Cross multiply
    31,638,644.50x = 43,665,988.53 × 20,037,286.66
  4. Step 4: Simplify right side
    31,638,644.50x = 874,947,929,467,882
  5. Step 5: Solve for x
    x = 874,947,929,467,882/31,638,644.50
  6. Step 6: Final answer
    x = 27,654,406.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.