Home / 8,305,145.70-12,457,718.55-2,919,876.90

Finding the Fourth Proportional to 8,305,145.70, 12,457,718.55 and 2,919,876.90

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Solution

The fourth proportional to 8,305,145.70, 12,457,718.55 and 2,919,876.90 is: 4,379,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,145.70 : 12,457,718.55 = 2,919,876.90 : x
  2. Step 2: Convert to fraction form
    8,305,145.70/12,457,718.55 = 2,919,876.90/x
  3. Step 3: Cross multiply
    8,305,145.70x = 12,457,718.55 × 2,919,876.90
  4. Step 4: Simplify right side
    8,305,145.70x = 36,375,004,620,846.49
  5. Step 5: Solve for x
    x = 36,375,004,620,846.49/8,305,145.70
  6. Step 6: Final answer
    x = 4,379,815.35

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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.