Home / 20,786,640.30-31,144,531.05-17,739,711.90

Finding the Fourth Proportional to 20,786,640.30, 31,144,531.05 and 17,739,711.90

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Solution

The fourth proportional to 20,786,640.30, 31,144,531.05 and 17,739,711.90 is: 26,579,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786,640.30 : 31,144,531.05 = 17,739,711.90 : x
  2. Step 2: Convert to fraction form
    20,786,640.30/31,144,531.05 = 17,739,711.90/x
  3. Step 3: Cross multiply
    20,786,640.30x = 31,144,531.05 × 17,739,711.90
  4. Step 4: Simplify right side
    20,786,640.30x = 552,495,008,087,604.44
  5. Step 5: Solve for x
    x = 552,495,008,087,604.44/20,786,640.30
  6. Step 6: Final answer
    x = 26,579,331.73

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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.