Home / 12,950,356.92-17,871,637.41-7,149,141.78

Finding the Fourth Proportional to 12,950,356.92, 17,871,637.41 and 7,149,141.78

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Solution

The fourth proportional to 12,950,356.92, 17,871,637.41 and 7,149,141.78 is: 9,865,895.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,356.92 : 17,871,637.41 = 7,149,141.78 : x
  2. Step 2: Convert to fraction form
    12,950,356.92/17,871,637.41 = 7,149,141.78/x
  3. Step 3: Cross multiply
    12,950,356.92x = 17,871,637.41 × 7,149,141.78
  4. Step 4: Simplify right side
    12,950,356.92x = 127,766,869,684,842
  5. Step 5: Solve for x
    x = 127,766,869,684,842/12,950,356.92
  6. Step 6: Final answer
    x = 9,865,895.63

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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.