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Finding the Fourth Proportional to 8,497,793.64, 12,748,682.78 and 3,380,513.96

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Solution

The fourth proportional to 8,497,793.64, 12,748,682.78 and 3,380,513.96 is: 5,071,563.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,497,793.64 : 12,748,682.78 = 3,380,513.96 : x
  2. Step 2: Convert to fraction form
    8,497,793.64/12,748,682.78 = 3,380,513.96/x
  3. Step 3: Cross multiply
    8,497,793.64x = 12,748,682.78 × 3,380,513.96
  4. Step 4: Simplify right side
    8,497,793.64x = 43,097,100,109,401.61
  5. Step 5: Solve for x
    x = 43,097,100,109,401.61/8,497,793.64
  6. Step 6: Final answer
    x = 5,071,563.51

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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.