Home / 420,080,080.80-630,120,121.20-226,369,836.30

Finding the Fourth Proportional to 420,080,080.80, 630,120,121.20 and 226,369,836.30

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Solution

The fourth proportional to 420,080,080.80, 630,120,121.20 and 226,369,836.30 is: 339,554,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,080,080.80 : 630,120,121.20 = 226,369,836.30 : x
  2. Step 2: Convert to fraction form
    420,080,080.80/630,120,121.20 = 226,369,836.30/x
  3. Step 3: Cross multiply
    420,080,080.80x = 630,120,121.20 × 226,369,836.30
  4. Step 4: Simplify right side
    420,080,080.80x = 142,640,188,685,380,176
  5. Step 5: Solve for x
    x = 142,640,188,685,380,176/420,080,080.80
  6. Step 6: Final answer
    x = 339,554,754.45

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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.