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Finding the Fourth Proportional to 18,175,912.40, 27,240,713.40 and 9,660,328.40

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Solution

The fourth proportional to 18,175,912.40, 27,240,713.40 and 9,660,328.40 is: 14,478,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175,912.40 : 27,240,713.40 = 9,660,328.40 : x
  2. Step 2: Convert to fraction form
    18,175,912.40/27,240,713.40 = 9,660,328.40/x
  3. Step 3: Cross multiply
    18,175,912.40x = 27,240,713.40 × 9,660,328.40
  4. Step 4: Simplify right side
    18,175,912.40x = 263,154,237,294,280.56
  5. Step 5: Solve for x
    x = 263,154,237,294,280.56/18,175,912.40
  6. Step 6: Final answer
    x = 14,478,185.83

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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.