Home / 12,950,640.06-17,871,909.75-7,149,429.78

Finding the Fourth Proportional to 12,950,640.06, 17,871,909.75 and 7,149,429.78

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Solution

The fourth proportional to 12,950,640.06, 17,871,909.75 and 7,149,429.78 is: 9,866,227.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,640.06 : 17,871,909.75 = 7,149,429.78 : x
  2. Step 2: Convert to fraction form
    12,950,640.06/17,871,909.75 = 7,149,429.78/x
  3. Step 3: Cross multiply
    12,950,640.06x = 17,871,909.75 × 7,149,429.78
  4. Step 4: Simplify right side
    12,950,640.06x = 127,773,963,792,122.36
  5. Step 5: Solve for x
    x = 127,773,963,792,122.36/12,950,640.06
  6. Step 6: Final answer
    x = 9,866,227.71

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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.