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Finding the Fourth Proportional to 12,652,499.10, 18,978,748.65 and 12,033,183.90

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Solution

The fourth proportional to 12,652,499.10, 18,978,748.65 and 12,033,183.90 is: 18,049,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652,499.10 : 18,978,748.65 = 12,033,183.90 : x
  2. Step 2: Convert to fraction form
    12,652,499.10/18,978,748.65 = 12,033,183.90/x
  3. Step 3: Cross multiply
    12,652,499.10x = 18,978,748.65 × 12,033,183.90
  4. Step 4: Simplify right side
    12,652,499.10x = 228,374,772,697,326.72
  5. Step 5: Solve for x
    x = 228,374,772,697,326.72/12,652,499.10
  6. Step 6: Final answer
    x = 18,049,775.85

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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.