Home / 15,189,592.64-20,961,474.30-8,220,115.98

Finding the Fourth Proportional to 15,189,592.64, 20,961,474.30 and 8,220,115.98

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Solution

The fourth proportional to 15,189,592.64, 20,961,474.30 and 8,220,115.98 is: 11,343,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,592.64 : 20,961,474.30 = 8,220,115.98 : x
  2. Step 2: Convert to fraction form
    15,189,592.64/20,961,474.30 = 8,220,115.98/x
  3. Step 3: Cross multiply
    15,189,592.64x = 20,961,474.30 × 8,220,115.98
  4. Step 4: Simplify right side
    15,189,592.64x = 172,305,749,857,789.34
  5. Step 5: Solve for x
    x = 172,305,749,857,789.34/15,189,592.64
  6. Step 6: Final answer
    x = 11,343,671.55

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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.