Home / 12,950,188.03-17,870,791.08-7,148,845.21

Finding the Fourth Proportional to 12,950,188.03, 17,870,791.08 and 7,148,845.21

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Solution

The fourth proportional to 12,950,188.03, 17,870,791.08 and 7,148,845.21 is: 9,865,147.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,188.03 : 17,870,791.08 = 7,148,845.21 : x
  2. Step 2: Convert to fraction form
    12,950,188.03/17,870,791.08 = 7,148,845.21/x
  3. Step 3: Cross multiply
    12,950,188.03x = 17,870,791.08 × 7,148,845.21
  4. Step 4: Simplify right side
    12,950,188.03x = 127,755,519,211,168.72
  5. Step 5: Solve for x
    x = 127,755,519,211,168.72/12,950,188.03
  6. Step 6: Final answer
    x = 9,865,147.82

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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.