Home / 420,080,081.55-630,120,122.33-226,369,837.05

Finding the Fourth Proportional to 420,080,081.55, 630,120,122.33 and 226,369,837.05

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Solution

The fourth proportional to 420,080,081.55, 630,120,122.33 and 226,369,837.05 is: 339,554,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,080,081.55 : 630,120,122.33 = 226,369,837.05 : x
  2. Step 2: Convert to fraction form
    420,080,081.55/630,120,122.33 = 226,369,837.05/x
  3. Step 3: Cross multiply
    420,080,081.55x = 630,120,122.33 × 226,369,837.05
  4. Step 4: Simplify right side
    420,080,081.55x = 142,640,189,412,636,336
  5. Step 5: Solve for x
    x = 142,640,189,412,636,336/420,080,081.55
  6. Step 6: Final answer
    x = 339,554,755.58

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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.