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Finding the Fourth Proportional to 14,579,499.21, 20,106,348.08 and 9,940,216.11

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Solution

The fourth proportional to 14,579,499.21, 20,106,348.08 and 9,940,216.11 is: 13,708,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579,499.21 : 20,106,348.08 = 9,940,216.11 : x
  2. Step 2: Convert to fraction form
    14,579,499.21/20,106,348.08 = 9,940,216.11/x
  3. Step 3: Cross multiply
    14,579,499.21x = 20,106,348.08 × 9,940,216.11
  4. Step 4: Simplify right side
    14,579,499.21x = 199,861,445,098,083.53
  5. Step 5: Solve for x
    x = 199,861,445,098,083.53/14,579,499.21
  6. Step 6: Final answer
    x = 13,708,388.90

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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.