Home / 20,215,807.80-30,334,209.30-8,857,404.60

Finding the Fourth Proportional to 20,215,807.80, 30,334,209.30 and 8,857,404.60

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Solution

The fourth proportional to 20,215,807.80, 30,334,209.30 and 8,857,404.60 is: 13,290,706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,807.80 : 30,334,209.30 = 8,857,404.60 : x
  2. Step 2: Convert to fraction form
    20,215,807.80/30,334,209.30 = 8,857,404.60/x
  3. Step 3: Cross multiply
    20,215,807.80x = 30,334,209.30 × 8,857,404.60
  4. Step 4: Simplify right side
    20,215,807.80x = 268,682,364,991,182.78
  5. Step 5: Solve for x
    x = 268,682,364,991,182.78/20,215,807.80
  6. Step 6: Final answer
    x = 13,290,706.34

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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.