Home / 8,305,175.20-12,457,762.80-2,919,906.40

Finding the Fourth Proportional to 8,305,175.20, 12,457,762.80 and 2,919,906.40

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Solution

The fourth proportional to 8,305,175.20, 12,457,762.80 and 2,919,906.40 is: 4,379,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,175.20 : 12,457,762.80 = 2,919,906.40 : x
  2. Step 2: Convert to fraction form
    8,305,175.20/12,457,762.80 = 2,919,906.40/x
  3. Step 3: Cross multiply
    8,305,175.20x = 12,457,762.80 × 2,919,906.40
  4. Step 4: Simplify right side
    8,305,175.20x = 36,375,501,329,401.92
  5. Step 5: Solve for x
    x = 36,375,501,329,401.92/8,305,175.20
  6. Step 6: Final answer
    x = 4,379,859.60

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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.