Home / 20,131,272.60-30,189,035.70-7,345,195.80

Finding the Fourth Proportional to 20,131,272.60, 30,189,035.70 and 7,345,195.80

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Solution

The fourth proportional to 20,131,272.60, 30,189,035.70 and 7,345,195.80 is: 11,014,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,272.60 : 30,189,035.70 = 7,345,195.80 : x
  2. Step 2: Convert to fraction form
    20,131,272.60/30,189,035.70 = 7,345,195.80/x
  3. Step 3: Cross multiply
    20,131,272.60x = 30,189,035.70 × 7,345,195.80
  4. Step 4: Simplify right side
    20,131,272.60x = 221,744,378,229,690.06
  5. Step 5: Solve for x
    x = 221,744,378,229,690.06/20,131,272.60
  6. Step 6: Final answer
    x = 11,014,921.05

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1.5x scale

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.