Home / 20,286,733.25-30,431,871.08-5,140,665.29

Finding the Fourth Proportional to 20,286,733.25, 30,431,871.08 and 5,140,665.29

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Solution

The fourth proportional to 20,286,733.25, 30,431,871.08 and 5,140,665.29 is: 7,711,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286,733.25 : 30,431,871.08 = 5,140,665.29 : x
  2. Step 2: Convert to fraction form
    20,286,733.25/30,431,871.08 = 5,140,665.29/x
  3. Step 3: Cross multiply
    20,286,733.25x = 30,431,871.08 × 5,140,665.29
  4. Step 4: Simplify right side
    20,286,733.25x = 156,440,063,345,007.47
  5. Step 5: Solve for x
    x = 156,440,063,345,007.47/20,286,733.25
  6. Step 6: Final answer
    x = 7,711,446.76

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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.