Home / 20,798,375.52-28,700,895.96-11,379,120.29

Finding the Fourth Proportional to 20,798,375.52, 28,700,895.96 and 11,379,120.29

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Solution

The fourth proportional to 20,798,375.52, 28,700,895.96 and 11,379,120.29 is: 15,702,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798,375.52 : 28,700,895.96 = 11,379,120.29 : x
  2. Step 2: Convert to fraction form
    20,798,375.52/28,700,895.96 = 11,379,120.29/x
  3. Step 3: Cross multiply
    20,798,375.52x = 28,700,895.96 × 11,379,120.29
  4. Step 4: Simplify right side
    20,798,375.52x = 326,590,947,416,110.56
  5. Step 5: Solve for x
    x = 326,590,947,416,110.56/20,798,375.52
  6. Step 6: Final answer
    x = 15,702,714.24

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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.