Home / 20,776,722.40-31,165,083.60-6,404,195.80

Finding the Fourth Proportional to 20,776,722.40, 31,165,083.60 and 6,404,195.80

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Solution

The fourth proportional to 20,776,722.40, 31,165,083.60 and 6,404,195.80 is: 9,606,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,722.40 : 31,165,083.60 = 6,404,195.80 : x
  2. Step 2: Convert to fraction form
    20,776,722.40/31,165,083.60 = 6,404,195.80/x
  3. Step 3: Cross multiply
    20,776,722.40x = 31,165,083.60 × 6,404,195.80
  4. Step 4: Simplify right side
    20,776,722.40x = 199,587,297,497,768.88
  5. Step 5: Solve for x
    x = 199,587,297,497,768.88/20,776,722.40
  6. Step 6: Final answer
    x = 9,606,293.70

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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.