Home / 20,801,853.80-31,202,780.70-15,763,005.80

Finding the Fourth Proportional to 20,801,853.80, 31,202,780.70 and 15,763,005.80

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Solution

The fourth proportional to 20,801,853.80, 31,202,780.70 and 15,763,005.80 is: 23,644,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,853.80 : 31,202,780.70 = 15,763,005.80 : x
  2. Step 2: Convert to fraction form
    20,801,853.80/31,202,780.70 = 15,763,005.80/x
  3. Step 3: Cross multiply
    20,801,853.80x = 31,202,780.70 × 15,763,005.80
  4. Step 4: Simplify right side
    20,801,853.80x = 491,849,613,150,228.06
  5. Step 5: Solve for x
    x = 491,849,613,150,228.06/20,801,853.80
  6. Step 6: Final answer
    x = 23,644,508.70

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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.