Home / 20,246,731.20-30,372,760.80-7,476,206.40

Finding the Fourth Proportional to 20,246,731.20, 30,372,760.80 and 7,476,206.40

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Solution

The fourth proportional to 20,246,731.20, 30,372,760.80 and 7,476,206.40 is: 11,215,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246,731.20 : 30,372,760.80 = 7,476,206.40 : x
  2. Step 2: Convert to fraction form
    20,246,731.20/30,372,760.80 = 7,476,206.40/x
  3. Step 3: Cross multiply
    20,246,731.20x = 30,372,760.80 × 7,476,206.40
  4. Step 4: Simplify right side
    20,246,731.20x = 227,073,028,678,629.12
  5. Step 5: Solve for x
    x = 227,073,028,678,629.12/20,246,731.20
  6. Step 6: Final answer
    x = 11,215,293.30

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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.