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Finding the Fourth Proportional to 14,789,715.18, 20,410,863.06 and 8,174,161.47

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Solution

The fourth proportional to 14,789,715.18, 20,410,863.06 and 8,174,161.47 is: 11,280,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789,715.18 : 20,410,863.06 = 8,174,161.47 : x
  2. Step 2: Convert to fraction form
    14,789,715.18/20,410,863.06 = 8,174,161.47/x
  3. Step 3: Cross multiply
    14,789,715.18x = 20,410,863.06 × 8,174,161.47
  4. Step 4: Simplify right side
    14,789,715.18x = 166,841,690,394,498.28
  5. Step 5: Solve for x
    x = 166,841,690,394,498.28/14,789,715.18
  6. Step 6: Final answer
    x = 11,280,926.53

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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.