Home / 20,500,644.72-28,291,480.14-11,333,877.96

Finding the Fourth Proportional to 20,500,644.72, 28,291,480.14 and 11,333,877.96

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Solution

The fourth proportional to 20,500,644.72, 28,291,480.14 and 11,333,877.96 is: 15,641,078.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,644.72 : 28,291,480.14 = 11,333,877.96 : x
  2. Step 2: Convert to fraction form
    20,500,644.72/28,291,480.14 = 11,333,877.96/x
  3. Step 3: Cross multiply
    20,500,644.72x = 28,291,480.14 × 11,333,877.96
  4. Step 4: Simplify right side
    20,500,644.72x = 320,652,183,214,523.75
  5. Step 5: Solve for x
    x = 320,652,183,214,523.75/20,500,644.72
  6. Step 6: Final answer
    x = 15,641,078.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.