Home / 7,279,727.20-10,919,590.80-7,138,009.60

Finding the Fourth Proportional to 7,279,727.20, 10,919,590.80 and 7,138,009.60

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Solution

The fourth proportional to 7,279,727.20, 10,919,590.80 and 7,138,009.60 is: 10,707,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279,727.20 : 10,919,590.80 = 7,138,009.60 : x
  2. Step 2: Convert to fraction form
    7,279,727.20/10,919,590.80 = 7,138,009.60/x
  3. Step 3: Cross multiply
    7,279,727.20x = 10,919,590.80 × 7,138,009.60
  4. Step 4: Simplify right side
    7,279,727.20x = 77,944,143,958,471.69
  5. Step 5: Solve for x
    x = 77,944,143,958,471.69/7,279,727.20
  6. Step 6: Final answer
    x = 10,707,014.40

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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.