Home / 20,756,467.35-31,107,691.58-8,446,081.28

Finding the Fourth Proportional to 20,756,467.35, 31,107,691.58 and 8,446,081.28

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Solution

The fourth proportional to 20,756,467.35, 31,107,691.58 and 8,446,081.28 is: 12,658,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756,467.35 : 31,107,691.58 = 8,446,081.28 : x
  2. Step 2: Convert to fraction form
    20,756,467.35/31,107,691.58 = 8,446,081.28/x
  3. Step 3: Cross multiply
    20,756,467.35x = 31,107,691.58 × 8,446,081.28
  4. Step 4: Simplify right side
    20,756,467.35x = 262,738,091,320,082.75
  5. Step 5: Solve for x
    x = 262,738,091,320,082.75/20,756,467.35
  6. Step 6: Final answer
    x = 12,658,131.41

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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.