Home / 20,801,818.01-31,206,982.70-7,153,191.83

Finding the Fourth Proportional to 20,801,818.01, 31,206,982.70 and 7,153,191.83

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Solution

The fourth proportional to 20,801,818.01, 31,206,982.70 and 7,153,191.83 is: 10,731,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,818.01 : 31,206,982.70 = 7,153,191.83 : x
  2. Step 2: Convert to fraction form
    20,801,818.01/31,206,982.70 = 7,153,191.83/x
  3. Step 3: Cross multiply
    20,801,818.01x = 31,206,982.70 × 7,153,191.83
  4. Step 4: Simplify right side
    20,801,818.01x = 223,229,533,558,644.09
  5. Step 5: Solve for x
    x = 223,229,533,558,644.09/20,801,818.01
  6. Step 6: Final answer
    x = 10,731,251.16

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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.