Home / 8,311,982.90-12,446,979.15-5,456,635.70

Finding the Fourth Proportional to 8,311,982.90, 12,446,979.15 and 5,456,635.70

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Solution

The fourth proportional to 8,311,982.90, 12,446,979.15 and 5,456,635.70 is: 8,171,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311,982.90 : 12,446,979.15 = 5,456,635.70 : x
  2. Step 2: Convert to fraction form
    8,311,982.90/12,446,979.15 = 5,456,635.70/x
  3. Step 3: Cross multiply
    8,311,982.90x = 12,446,979.15 × 5,456,635.70
  4. Step 4: Simplify right side
    8,311,982.90x = 67,918,630,787,045.66
  5. Step 5: Solve for x
    x = 67,918,630,787,045.66/8,311,982.90
  6. Step 6: Final answer
    x = 8,171,170.66

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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.