Home / 20,612,907.52-28,449,312.92-11,916,122.20

Finding the Fourth Proportional to 20,612,907.52, 28,449,312.92 and 11,916,122.20

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Solution

The fourth proportional to 20,612,907.52, 28,449,312.92 and 11,916,122.20 is: 16,446,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,907.52 : 28,449,312.92 = 11,916,122.20 : x
  2. Step 2: Convert to fraction form
    20,612,907.52/28,449,312.92 = 11,916,122.20/x
  3. Step 3: Cross multiply
    20,612,907.52x = 28,449,312.92 × 11,916,122.20
  4. Step 4: Simplify right side
    20,612,907.52x = 339,005,489,260,758.81
  5. Step 5: Solve for x
    x = 339,005,489,260,758.81/20,612,907.52
  6. Step 6: Final answer
    x = 16,446,272.27

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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.