Home / 20,299,147.51-28,013,374.38-11,479,917.60

Finding the Fourth Proportional to 20,299,147.51, 28,013,374.38 and 11,479,917.60

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Solution

The fourth proportional to 20,299,147.51, 28,013,374.38 and 11,479,917.60 is: 15,842,597.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299,147.51 : 28,013,374.38 = 11,479,917.60 : x
  2. Step 2: Convert to fraction form
    20,299,147.51/28,013,374.38 = 11,479,917.60/x
  3. Step 3: Cross multiply
    20,299,147.51x = 28,013,374.38 × 11,479,917.60
  4. Step 4: Simplify right side
    20,299,147.51x = 321,591,229,580,351.06
  5. Step 5: Solve for x
    x = 321,591,229,580,351.06/20,299,147.51
  6. Step 6: Final answer
    x = 15,842,597.79

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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.