Home / 20,727,500.78-31,084,514.73-6,890,745.26

Finding the Fourth Proportional to 20,727,500.78, 31,084,514.73 and 6,890,745.26

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Solution

The fourth proportional to 20,727,500.78, 31,084,514.73 and 6,890,745.26 is: 10,333,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,500.78 : 31,084,514.73 = 6,890,745.26 : x
  2. Step 2: Convert to fraction form
    20,727,500.78/31,084,514.73 = 6,890,745.26/x
  3. Step 3: Cross multiply
    20,727,500.78x = 31,084,514.73 × 6,890,745.26
  4. Step 4: Simplify right side
    20,727,500.78x = 214,195,472,535,147.69
  5. Step 5: Solve for x
    x = 214,195,472,535,147.69/20,727,500.78
  6. Step 6: Final answer
    x = 10,333,878.40

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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.