Home / 20,796,117.12-31,197,013.11-8,662,743.03

Finding the Fourth Proportional to 20,796,117.12, 31,197,013.11 and 8,662,743.03

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Solution

The fourth proportional to 20,796,117.12, 31,197,013.11 and 8,662,743.03 is: 12,995,296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,117.12 : 31,197,013.11 = 8,662,743.03 : x
  2. Step 2: Convert to fraction form
    20,796,117.12/31,197,013.11 = 8,662,743.03/x
  3. Step 3: Cross multiply
    20,796,117.12x = 31,197,013.11 × 8,662,743.03
  4. Step 4: Simplify right side
    20,796,117.12x = 270,251,707,948,581.31
  5. Step 5: Solve for x
    x = 270,251,707,948,581.31/20,796,117.12
  6. Step 6: Final answer
    x = 12,995,296.49

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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.