Home / 20,504,726.60-30,757,089.90-12,851,976.20

Finding the Fourth Proportional to 20,504,726.60, 30,757,089.90 and 12,851,976.20

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Solution

The fourth proportional to 20,504,726.60, 30,757,089.90 and 12,851,976.20 is: 19,277,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504,726.60 : 30,757,089.90 = 12,851,976.20 : x
  2. Step 2: Convert to fraction form
    20,504,726.60/30,757,089.90 = 12,851,976.20/x
  3. Step 3: Cross multiply
    20,504,726.60x = 30,757,089.90 × 12,851,976.20
  4. Step 4: Simplify right side
    20,504,726.60x = 395,289,387,376,060.31
  5. Step 5: Solve for x
    x = 395,289,387,376,060.31/20,504,726.60
  6. Step 6: Final answer
    x = 19,277,964.30

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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.