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Finding the Fourth Proportional to 10,703,896.80, 16,034,072.40 and 6,647,935.20

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Solution

The fourth proportional to 10,703,896.80, 16,034,072.40 and 6,647,935.20 is: 9,958,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,703,896.80 : 16,034,072.40 = 6,647,935.20 : x
  2. Step 2: Convert to fraction form
    10,703,896.80/16,034,072.40 = 6,647,935.20/x
  3. Step 3: Cross multiply
    10,703,896.80x = 16,034,072.40 × 6,647,935.20
  4. Step 4: Simplify right side
    10,703,896.80x = 106,593,474,307,308.48
  5. Step 5: Solve for x
    x = 106,593,474,307,308.48/10,703,896.80
  6. Step 6: Final answer
    x = 9,958,380.23

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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.