Home / 7,320,001.20-10,972,128.60-2,769,291.60

Finding the Fourth Proportional to 7,320,001.20, 10,972,128.60 and 2,769,291.60

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Solution

The fourth proportional to 7,320,001.20, 10,972,128.60 and 2,769,291.60 is: 4,150,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320,001.20 : 10,972,128.60 = 2,769,291.60 : x
  2. Step 2: Convert to fraction form
    7,320,001.20/10,972,128.60 = 2,769,291.60/x
  3. Step 3: Cross multiply
    7,320,001.20x = 10,972,128.60 × 2,769,291.60
  4. Step 4: Simplify right side
    7,320,001.20x = 30,385,023,566,099.76
  5. Step 5: Solve for x
    x = 30,385,023,566,099.76/7,320,001.20
  6. Step 6: Final answer
    x = 4,150,958.82

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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.