Home / 20,903,213.10-31,342,616.19-8,108,767.38

Finding the Fourth Proportional to 20,903,213.10, 31,342,616.19 and 8,108,767.38

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Solution

The fourth proportional to 20,903,213.10, 31,342,616.19 and 8,108,767.38 is: 12,158,417.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903,213.10 : 31,342,616.19 = 8,108,767.38 : x
  2. Step 2: Convert to fraction form
    20,903,213.10/31,342,616.19 = 8,108,767.38/x
  3. Step 3: Cross multiply
    20,903,213.10x = 31,342,616.19 × 8,108,767.38
  4. Step 4: Simplify right side
    20,903,213.10x = 254,149,983,765,331.88
  5. Step 5: Solve for x
    x = 254,149,983,765,331.88/20,903,213.10
  6. Step 6: Final answer
    x = 12,158,417.11

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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.