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Finding the Fourth Proportional to 11,491,811.30, 17,237,716.95 and 8,090,588.90

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Solution

The fourth proportional to 11,491,811.30, 17,237,716.95 and 8,090,588.90 is: 12,135,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491,811.30 : 17,237,716.95 = 8,090,588.90 : x
  2. Step 2: Convert to fraction form
    11,491,811.30/17,237,716.95 = 8,090,588.90/x
  3. Step 3: Cross multiply
    11,491,811.30x = 17,237,716.95 × 8,090,588.90
  4. Step 4: Simplify right side
    11,491,811.30x = 139,463,281,417,011.86
  5. Step 5: Solve for x
    x = 139,463,281,417,011.86/11,491,811.30
  6. Step 6: Final answer
    x = 12,135,883.35

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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.