Home / 20,620,550.57-30,934,808.92-7,840,061.55

Finding the Fourth Proportional to 20,620,550.57, 30,934,808.92 and 7,840,061.55

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Solution

The fourth proportional to 20,620,550.57, 30,934,808.92 and 7,840,061.55 is: 11,761,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,550.57 : 30,934,808.92 = 7,840,061.55 : x
  2. Step 2: Convert to fraction form
    20,620,550.57/30,934,808.92 = 7,840,061.55/x
  3. Step 3: Cross multiply
    20,620,550.57x = 30,934,808.92 × 7,840,061.55
  4. Step 4: Simplify right side
    20,620,550.57x = 242,530,805,980,089.09
  5. Step 5: Solve for x
    x = 242,530,805,980,089.09/20,620,550.57
  6. Step 6: Final answer
    x = 11,761,606.71

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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.