Home / 12,950,187.03-17,870,789.70-7,148,844.21

Finding the Fourth Proportional to 12,950,187.03, 17,870,789.70 and 7,148,844.21

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Solution

The fourth proportional to 12,950,187.03, 17,870,789.70 and 7,148,844.21 is: 9,865,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,187.03 : 17,870,789.70 = 7,148,844.21 : x
  2. Step 2: Convert to fraction form
    12,950,187.03/17,870,789.70 = 7,148,844.21/x
  3. Step 3: Cross multiply
    12,950,187.03x = 17,870,789.70 × 7,148,844.21
  4. Step 4: Simplify right side
    12,950,187.03x = 127,755,491,474,972.62
  5. Step 5: Solve for x
    x = 127,755,491,474,972.62/12,950,187.03
  6. Step 6: Final answer
    x = 9,865,146.44

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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.