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Finding the Fourth Proportional to 18,389,900.40, 27,584,850.60 and 6,255,330.90

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Solution

The fourth proportional to 18,389,900.40, 27,584,850.60 and 6,255,330.90 is: 9,382,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389,900.40 : 27,584,850.60 = 6,255,330.90 : x
  2. Step 2: Convert to fraction form
    18,389,900.40/27,584,850.60 = 6,255,330.90/x
  3. Step 3: Cross multiply
    18,389,900.40x = 27,584,850.60 × 6,255,330.90
  4. Step 4: Simplify right side
    18,389,900.40x = 172,552,368,330,063.56
  5. Step 5: Solve for x
    x = 172,552,368,330,063.56/18,389,900.40
  6. Step 6: Final answer
    x = 9,382,996.35

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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.