Home / 19,561,078.20-29,341,617.30-15,529,999.80

Finding the Fourth Proportional to 19,561,078.20, 29,341,617.30 and 15,529,999.80

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Solution

The fourth proportional to 19,561,078.20, 29,341,617.30 and 15,529,999.80 is: 23,294,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561,078.20 : 29,341,617.30 = 15,529,999.80 : x
  2. Step 2: Convert to fraction form
    19,561,078.20/29,341,617.30 = 15,529,999.80/x
  3. Step 3: Cross multiply
    19,561,078.20x = 29,341,617.30 × 15,529,999.80
  4. Step 4: Simplify right side
    19,561,078.20x = 455,675,310,800,676.56
  5. Step 5: Solve for x
    x = 455,675,310,800,676.56/19,561,078.20
  6. Step 6: Final answer
    x = 23,294,999.70

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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.