Home / 20,771,213.94-31,156,820.97-7,997,734.26

Finding the Fourth Proportional to 20,771,213.94, 31,156,820.97 and 7,997,734.26

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Solution

The fourth proportional to 20,771,213.94, 31,156,820.97 and 7,997,734.26 is: 11,996,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,213.94 : 31,156,820.97 = 7,997,734.26 : x
  2. Step 2: Convert to fraction form
    20,771,213.94/31,156,820.97 = 7,997,734.26/x
  3. Step 3: Cross multiply
    20,771,213.94x = 31,156,820.97 × 7,997,734.26
  4. Step 4: Simplify right side
    20,771,213.94x = 249,183,974,504,455.41
  5. Step 5: Solve for x
    x = 249,183,974,504,455.41/20,771,213.94
  6. Step 6: Final answer
    x = 11,996,601.41

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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.