Home / 20,771,131.74-31,128,847.52-16,165,679.06

Finding the Fourth Proportional to 20,771,131.74, 31,128,847.52 and 16,165,679.06

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Solution

The fourth proportional to 20,771,131.74, 31,128,847.52 and 16,165,679.06 is: 24,226,843.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,131.74 : 31,128,847.52 = 16,165,679.06 : x
  2. Step 2: Convert to fraction form
    20,771,131.74/31,128,847.52 = 16,165,679.06/x
  3. Step 3: Cross multiply
    20,771,131.74x = 31,128,847.52 × 16,165,679.06
  4. Step 4: Simplify right side
    20,771,131.74x = 503,218,958,279,524.31
  5. Step 5: Solve for x
    x = 503,218,958,279,524.31/20,771,131.74
  6. Step 6: Final answer
    x = 24,226,843.51

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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.