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Finding the Fourth Proportional to 18,175,228.40, 27,239,687.40 and 9,659,644.40

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Solution

The fourth proportional to 18,175,228.40, 27,239,687.40 and 9,659,644.40 is: 14,477,160.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175,228.40 : 27,239,687.40 = 9,659,644.40 : x
  2. Step 2: Convert to fraction form
    18,175,228.40/27,239,687.40 = 9,659,644.40/x
  3. Step 3: Cross multiply
    18,175,228.40x = 27,239,687.40 × 9,659,644.40
  4. Step 4: Simplify right side
    18,175,228.40x = 263,125,693,851,160.56
  5. Step 5: Solve for x
    x = 263,125,693,851,160.56/18,175,228.40
  6. Step 6: Final answer
    x = 14,477,160.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.