Home / 20,969,200.39-28,912,735.86-14,356,995.24

Finding the Fourth Proportional to 20,969,200.39, 28,912,735.86 and 14,356,995.24

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Solution

The fourth proportional to 20,969,200.39, 28,912,735.86 and 14,356,995.24 is: 19,795,700.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,200.39 : 28,912,735.86 = 14,356,995.24 : x
  2. Step 2: Convert to fraction form
    20,969,200.39/28,912,735.86 = 14,356,995.24/x
  3. Step 3: Cross multiply
    20,969,200.39x = 28,912,735.86 × 14,356,995.24
  4. Step 4: Simplify right side
    20,969,200.39x = 415,100,010,972,833.62
  5. Step 5: Solve for x
    x = 415,100,010,972,833.62/20,969,200.39
  6. Step 6: Final answer
    x = 19,795,700.52

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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.