Home / 20,763,034.20-31,176,044.10-15,976,128.60

Finding the Fourth Proportional to 20,763,034.20, 31,176,044.10 and 15,976,128.60

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Solution

The fourth proportional to 20,763,034.20, 31,176,044.10 and 15,976,128.60 is: 23,988,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,034.20 : 31,176,044.10 = 15,976,128.60 : x
  2. Step 2: Convert to fraction form
    20,763,034.20/31,176,044.10 = 15,976,128.60/x
  3. Step 3: Cross multiply
    20,763,034.20x = 31,176,044.10 × 15,976,128.60
  4. Step 4: Simplify right side
    20,763,034.20x = 498,072,489,780,871.25
  5. Step 5: Solve for x
    x = 498,072,489,780,871.25/20,763,034.20
  6. Step 6: Final answer
    x = 23,988,425.05

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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.