Home / 200,045,414.72-300,121,987.90-102,948,213.44

Finding the Fourth Proportional to 200,045,414.72, 300,121,987.90 and 102,948,213.44

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Solution

The fourth proportional to 200,045,414.72, 300,121,987.90 and 102,948,213.44 is: 154,450,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,045,414.72 : 300,121,987.90 = 102,948,213.44 : x
  2. Step 2: Convert to fraction form
    200,045,414.72/300,121,987.90 = 102,948,213.44/x
  3. Step 3: Cross multiply
    200,045,414.72x = 300,121,987.90 × 102,948,213.44
  4. Step 4: Simplify right side
    200,045,414.72x = 30,897,022,468,366,296
  5. Step 5: Solve for x
    x = 30,897,022,468,366,296/200,045,414.72
  6. Step 6: Final answer
    x = 154,450,040.82

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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.