Home / 20,847,786.58-31,275,608.31-7,897,816

Finding the Fourth Proportional to 20,847,786.58, 31,275,608.31 and 7,897,816

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Solution

The fourth proportional to 20,847,786.58, 31,275,608.31 and 7,897,816 is: 11,848,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847,786.58 : 31,275,608.31 = 7,897,816 : x
  2. Step 2: Convert to fraction form
    20,847,786.58/31,275,608.31 = 7,897,816/x
  3. Step 3: Cross multiply
    20,847,786.58x = 31,275,608.31 × 7,897,816
  4. Step 4: Simplify right side
    20,847,786.58x = 247,008,999,720,450.94
  5. Step 5: Solve for x
    x = 247,008,999,720,450.94/20,847,786.58
  6. Step 6: Final answer
    x = 11,848,212.22

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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.