Home / 20,221,236.69-30,328,865.19-7,438,752.03

Finding the Fourth Proportional to 20,221,236.69, 30,328,865.19 and 7,438,752.03

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Solution

The fourth proportional to 20,221,236.69, 30,328,865.19 and 7,438,752.03 is: 11,157,028.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,236.69 : 30,328,865.19 = 7,438,752.03 : x
  2. Step 2: Convert to fraction form
    20,221,236.69/30,328,865.19 = 7,438,752.03/x
  3. Step 3: Cross multiply
    20,221,236.69x = 30,328,865.19 × 7,438,752.03
  4. Step 4: Simplify right side
    20,221,236.69x = 225,608,907,499,708.84
  5. Step 5: Solve for x
    x = 225,608,907,499,708.84/20,221,236.69
  6. Step 6: Final answer
    x = 11,157,028.18

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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.