Home / 20,793,886.10-31,192,913.55-7,145,234.90

Finding the Fourth Proportional to 20,793,886.10, 31,192,913.55 and 7,145,234.90

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Solution

The fourth proportional to 20,793,886.10, 31,192,913.55 and 7,145,234.90 is: 10,718,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,886.10 : 31,192,913.55 = 7,145,234.90 : x
  2. Step 2: Convert to fraction form
    20,793,886.10/31,192,913.55 = 7,145,234.90/x
  3. Step 3: Cross multiply
    20,793,886.10x = 31,192,913.55 × 7,145,234.90
  4. Step 4: Simplify right side
    20,793,886.10x = 222,880,694,530,142.91
  5. Step 5: Solve for x
    x = 222,880,694,530,142.91/20,793,886.10
  6. Step 6: Final answer
    x = 10,718,568.60

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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.