Home / 8,791,847.91-12,138,674.76-5,489,175.78

Finding the Fourth Proportional to 8,791,847.91, 12,138,674.76 and 5,489,175.78

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Solution

The fourth proportional to 8,791,847.91, 12,138,674.76 and 5,489,175.78 is: 7,578,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,847.91 : 12,138,674.76 = 5,489,175.78 : x
  2. Step 2: Convert to fraction form
    8,791,847.91/12,138,674.76 = 5,489,175.78/x
  3. Step 3: Cross multiply
    8,791,847.91x = 12,138,674.76 × 5,489,175.78
  4. Step 4: Simplify right side
    8,791,847.91x = 66,631,319,493,889.31
  5. Step 5: Solve for x
    x = 66,631,319,493,889.31/8,791,847.91
  6. Step 6: Final answer
    x = 7,578,761.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.