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Finding the Fourth Proportional to 8,340,998.70, 12,512,664.45 and 3,548,649.90

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Solution

The fourth proportional to 8,340,998.70, 12,512,664.45 and 3,548,649.90 is: 5,323,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340,998.70 : 12,512,664.45 = 3,548,649.90 : x
  2. Step 2: Convert to fraction form
    8,340,998.70/12,512,664.45 = 3,548,649.90/x
  3. Step 3: Cross multiply
    8,340,998.70x = 12,512,664.45 × 3,548,649.90
  4. Step 4: Simplify right side
    8,340,998.70x = 44,403,065,449,226.05
  5. Step 5: Solve for x
    x = 44,403,065,449,226.05/8,340,998.70
  6. Step 6: Final answer
    x = 5,323,471.09

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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.