Home / 20,218,207.30-30,331,247.55-8,703,652.30

Finding the Fourth Proportional to 20,218,207.30, 30,331,247.55 and 8,703,652.30

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Solution

The fourth proportional to 20,218,207.30, 30,331,247.55 and 8,703,652.30 is: 13,057,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218,207.30 : 30,331,247.55 = 8,703,652.30 : x
  2. Step 2: Convert to fraction form
    20,218,207.30/30,331,247.55 = 8,703,652.30/x
  3. Step 3: Cross multiply
    20,218,207.30x = 30,331,247.55 × 8,703,652.30
  4. Step 4: Simplify right side
    20,218,207.30x = 263,992,632,500,426.91
  5. Step 5: Solve for x
    x = 263,992,632,500,426.91/20,218,207.30
  6. Step 6: Final answer
    x = 13,057,173.10

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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.