Home / 395,728,936.78-592,988,081.83-211,522,628.83

Finding the Fourth Proportional to 395,728,936.78, 592,988,081.83 and 211,522,628.83

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Solution

The fourth proportional to 395,728,936.78, 592,988,081.83 and 211,522,628.83 is: 316,960,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,728,936.78 : 592,988,081.83 = 211,522,628.83 : x
  2. Step 2: Convert to fraction form
    395,728,936.78/592,988,081.83 = 211,522,628.83/x
  3. Step 3: Cross multiply
    395,728,936.78x = 592,988,081.83 × 211,522,628.83
  4. Step 4: Simplify right side
    395,728,936.78x = 125,430,397,933,540,768
  5. Step 5: Solve for x
    x = 125,430,397,933,540,768/395,728,936.78
  6. Step 6: Final answer
    x = 316,960,389.49

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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.