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Finding the Fourth Proportional to 18,337,375.76, 27,506,977.26 and 6,978,704.72

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Solution

The fourth proportional to 18,337,375.76, 27,506,977.26 and 6,978,704.72 is: 10,468,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337,375.76 : 27,506,977.26 = 6,978,704.72 : x
  2. Step 2: Convert to fraction form
    18,337,375.76/27,506,977.26 = 6,978,704.72/x
  3. Step 3: Cross multiply
    18,337,375.76x = 27,506,977.26 × 6,978,704.72
  4. Step 4: Simplify right side
    18,337,375.76x = 191,963,072,037,294.66
  5. Step 5: Solve for x
    x = 191,963,072,037,294.66/18,337,375.76
  6. Step 6: Final answer
    x = 10,468,404.78

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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.