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Finding the Fourth Proportional to 18,509,203.20, 27,763,804.80 and 9,551,251.20

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Solution

The fourth proportional to 18,509,203.20, 27,763,804.80 and 9,551,251.20 is: 14,326,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509,203.20 : 27,763,804.80 = 9,551,251.20 : x
  2. Step 2: Convert to fraction form
    18,509,203.20/27,763,804.80 = 9,551,251.20/x
  3. Step 3: Cross multiply
    18,509,203.20x = 27,763,804.80 × 9,551,251.20
  4. Step 4: Simplify right side
    18,509,203.20x = 265,179,073,912,565.75
  5. Step 5: Solve for x
    x = 265,179,073,912,565.75/18,509,203.20
  6. Step 6: Final answer
    x = 14,326,876.80

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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.