Home / 20,348,425.85-28,080,821.25-11,181,659.09

Finding the Fourth Proportional to 20,348,425.85, 28,080,821.25 and 11,181,659.09

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Solution

The fourth proportional to 20,348,425.85, 28,080,821.25 and 11,181,659.09 is: 15,430,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,425.85 : 28,080,821.25 = 11,181,659.09 : x
  2. Step 2: Convert to fraction form
    20,348,425.85/28,080,821.25 = 11,181,659.09/x
  3. Step 3: Cross multiply
    20,348,425.85x = 28,080,821.25 × 11,181,659.09
  4. Step 4: Simplify right side
    20,348,425.85x = 313,990,170,254,929.69
  5. Step 5: Solve for x
    x = 313,990,170,254,929.69/20,348,425.85
  6. Step 6: Final answer
    x = 15,430,686.02

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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.