Home / 20,819,060.26-28,726,874.85-13,078,620.34

Finding the Fourth Proportional to 20,819,060.26, 28,726,874.85 and 13,078,620.34

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Solution

The fourth proportional to 20,819,060.26, 28,726,874.85 and 13,078,620.34 is: 18,046,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,060.26 : 28,726,874.85 = 13,078,620.34 : x
  2. Step 2: Convert to fraction form
    20,819,060.26/28,726,874.85 = 13,078,620.34/x
  3. Step 3: Cross multiply
    20,819,060.26x = 28,726,874.85 × 13,078,620.34
  4. Step 4: Simplify right side
    20,819,060.26x = 375,707,889,717,844.44
  5. Step 5: Solve for x
    x = 375,707,889,717,844.44/20,819,060.26
  6. Step 6: Final answer
    x = 18,046,342.39

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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.