Home / 13,871,948.72-19,141,991.16-8,644,472.24

Finding the Fourth Proportional to 13,871,948.72, 19,141,991.16 and 8,644,472.24

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Solution

The fourth proportional to 13,871,948.72, 19,141,991.16 and 8,644,472.24 is: 11,928,562.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871,948.72 : 19,141,991.16 = 8,644,472.24 : x
  2. Step 2: Convert to fraction form
    13,871,948.72/19,141,991.16 = 8,644,472.24/x
  3. Step 3: Cross multiply
    13,871,948.72x = 19,141,991.16 × 8,644,472.24
  4. Step 4: Simplify right side
    13,871,948.72x = 165,472,411,200,945.41
  5. Step 5: Solve for x
    x = 165,472,411,200,945.41/13,871,948.72
  6. Step 6: Final answer
    x = 11,928,562.78

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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.