Home / 20,049,905.20-30,074,857.80-11,556,439.60

Finding the Fourth Proportional to 20,049,905.20, 30,074,857.80 and 11,556,439.60

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Solution

The fourth proportional to 20,049,905.20, 30,074,857.80 and 11,556,439.60 is: 17,334,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049,905.20 : 30,074,857.80 = 11,556,439.60 : x
  2. Step 2: Convert to fraction form
    20,049,905.20/30,074,857.80 = 11,556,439.60/x
  3. Step 3: Cross multiply
    20,049,905.20x = 30,074,857.80 × 11,556,439.60
  4. Step 4: Simplify right side
    20,049,905.20x = 347,558,277,644,288.88
  5. Step 5: Solve for x
    x = 347,558,277,644,288.88/20,049,905.20
  6. Step 6: Final answer
    x = 17,334,659.40

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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.