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Finding the Fourth Proportional to 12,454,978.20, 18,696,464.10 and 9,627,624.60

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Solution

The fourth proportional to 12,454,978.20, 18,696,464.10 and 9,627,624.60 is: 14,452,256.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,978.20 : 18,696,464.10 = 9,627,624.60 : x
  2. Step 2: Convert to fraction form
    12,454,978.20/18,696,464.10 = 9,627,624.60/x
  3. Step 3: Cross multiply
    12,454,978.20x = 18,696,464.10 × 9,627,624.60
  4. Step 4: Simplify right side
    12,454,978.20x = 180,002,537,702,176.88
  5. Step 5: Solve for x
    x = 180,002,537,702,176.88/12,454,978.20
  6. Step 6: Final answer
    x = 14,452,256.34

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