Home / 20,608,889.21-30,915,575.90-7,653,520.16

Finding the Fourth Proportional to 20,608,889.21, 30,915,575.90 and 7,653,520.16

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Solution

The fourth proportional to 20,608,889.21, 30,915,575.90 and 7,653,520.16 is: 11,481,112.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608,889.21 : 30,915,575.90 = 7,653,520.16 : x
  2. Step 2: Convert to fraction form
    20,608,889.21/30,915,575.90 = 7,653,520.16/x
  3. Step 3: Cross multiply
    20,608,889.21x = 30,915,575.90 × 7,653,520.16
  4. Step 4: Simplify right side
    20,608,889.21x = 236,612,983,370,392.53
  5. Step 5: Solve for x
    x = 236,612,983,370,392.53/20,608,889.21
  6. Step 6: Final answer
    x = 11,481,112.88

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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.