Home / 38,491,367.40-53,118,131.94-20,850,305.64

Finding the Fourth Proportional to 38,491,367.40, 53,118,131.94 and 20,850,305.64

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Solution

The fourth proportional to 38,491,367.40, 53,118,131.94 and 20,850,305.64 is: 28,773,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491,367.40 : 53,118,131.94 = 20,850,305.64 : x
  2. Step 2: Convert to fraction form
    38,491,367.40/53,118,131.94 = 20,850,305.64/x
  3. Step 3: Cross multiply
    38,491,367.40x = 53,118,131.94 × 20,850,305.64
  4. Step 4: Simplify right side
    38,491,367.40x = 1,107,529,285,974,846.12
  5. Step 5: Solve for x
    x = 1,107,529,285,974,846.12/38,491,367.40
  6. Step 6: Final answer
    x = 28,773,446.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.