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Finding the Fourth Proportional to 18,491,657.40, 27,737,486.10 and 17,371,913.40

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Solution

The fourth proportional to 18,491,657.40, 27,737,486.10 and 17,371,913.40 is: 26,057,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491,657.40 : 27,737,486.10 = 17,371,913.40 : x
  2. Step 2: Convert to fraction form
    18,491,657.40/27,737,486.10 = 17,371,913.40/x
  3. Step 3: Cross multiply
    18,491,657.40x = 27,737,486.10 × 17,371,913.40
  4. Step 4: Simplify right side
    18,491,657.40x = 481,853,206,462,903.75
  5. Step 5: Solve for x
    x = 481,853,206,462,903.75/18,491,657.40
  6. Step 6: Final answer
    x = 26,057,870.10

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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.