Home / 12,950,185.03-17,870,786.94-7,148,842.21

Finding the Fourth Proportional to 12,950,185.03, 17,870,786.94 and 7,148,842.21

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Solution

The fourth proportional to 12,950,185.03, 17,870,786.94 and 7,148,842.21 is: 9,865,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,185.03 : 17,870,786.94 = 7,148,842.21 : x
  2. Step 2: Convert to fraction form
    12,950,185.03/17,870,786.94 = 7,148,842.21/x
  3. Step 3: Cross multiply
    12,950,185.03x = 17,870,786.94 × 7,148,842.21
  4. Step 4: Simplify right side
    12,950,185.03x = 127,755,436,002,588.75
  5. Step 5: Solve for x
    x = 127,755,436,002,588.75/12,950,185.03
  6. Step 6: Final answer
    x = 9,865,143.68

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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.