Home / 20,548,408.04-30,798,739.72-7,760,776.04

Finding the Fourth Proportional to 20,548,408.04, 30,798,739.72 and 7,760,776.04

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Solution

The fourth proportional to 20,548,408.04, 30,798,739.72 and 7,760,776.04 is: 11,632,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548,408.04 : 30,798,739.72 = 7,760,776.04 : x
  2. Step 2: Convert to fraction form
    20,548,408.04/30,798,739.72 = 7,760,776.04/x
  3. Step 3: Cross multiply
    20,548,408.04x = 30,798,739.72 × 7,760,776.04
  4. Step 4: Simplify right side
    20,548,408.04x = 239,022,121,281,172.31
  5. Step 5: Solve for x
    x = 239,022,121,281,172.31/20,548,408.04
  6. Step 6: Final answer
    x = 11,632,147.89

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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.