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Finding the Fourth Proportional to 18,784,310.10, 28,210,679.55 and 16,432,847.70

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Solution

The fourth proportional to 18,784,310.10, 28,210,679.55 and 16,432,847.70 is: 24,679,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784,310.10 : 28,210,679.55 = 16,432,847.70 : x
  2. Step 2: Convert to fraction form
    18,784,310.10/28,210,679.55 = 16,432,847.70/x
  3. Step 3: Cross multiply
    18,784,310.10x = 28,210,679.55 × 16,432,847.70
  4. Step 4: Simplify right side
    18,784,310.10x = 463,581,800,558,654.50
  5. Step 5: Solve for x
    x = 463,581,800,558,654.50/18,784,310.10
  6. Step 6: Final answer
    x = 24,679,202.91

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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.