Home / 20,203,011.20-30,304,516.80-7,432,680.80

Finding the Fourth Proportional to 20,203,011.20, 30,304,516.80 and 7,432,680.80

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Solution

The fourth proportional to 20,203,011.20, 30,304,516.80 and 7,432,680.80 is: 11,149,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203,011.20 : 30,304,516.80 = 7,432,680.80 : x
  2. Step 2: Convert to fraction form
    20,203,011.20/30,304,516.80 = 7,432,680.80/x
  3. Step 3: Cross multiply
    20,203,011.20x = 30,304,516.80 × 7,432,680.80
  4. Step 4: Simplify right side
    20,203,011.20x = 225,243,800,172,637.44
  5. Step 5: Solve for x
    x = 225,243,800,172,637.44/20,203,011.20
  6. Step 6: Final answer
    x = 11,149,021.20

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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.