Home / 12,950,346.42-17,871,622.92-7,149,131.28

Finding the Fourth Proportional to 12,950,346.42, 17,871,622.92 and 7,149,131.28

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Solution

The fourth proportional to 12,950,346.42, 17,871,622.92 and 7,149,131.28 is: 9,865,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950,346.42 : 17,871,622.92 = 7,149,131.28 : x
  2. Step 2: Convert to fraction form
    12,950,346.42/17,871,622.92 = 7,149,131.28/x
  3. Step 3: Cross multiply
    12,950,346.42x = 17,871,622.92 × 7,149,131.28
  4. Step 4: Simplify right side
    12,950,346.42x = 127,766,578,441,736.95
  5. Step 5: Solve for x
    x = 127,766,578,441,736.95/12,950,346.42
  6. Step 6: Final answer
    x = 9,865,881.14

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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.