Home / 395,728,936.35-592,988,081.18-211,522,628.40

Finding the Fourth Proportional to 395,728,936.35, 592,988,081.18 and 211,522,628.40

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Solution

The fourth proportional to 395,728,936.35, 592,988,081.18 and 211,522,628.40 is: 316,960,388.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,728,936.35 : 592,988,081.18 = 211,522,628.40 : x
  2. Step 2: Convert to fraction form
    395,728,936.35/592,988,081.18 = 211,522,628.40/x
  3. Step 3: Cross multiply
    395,728,936.35x = 592,988,081.18 × 211,522,628.40
  4. Step 4: Simplify right side
    395,728,936.35x = 125,430,397,537,784,848
  5. Step 5: Solve for x
    x = 125,430,397,537,784,848/395,728,936.35
  6. Step 6: Final answer
    x = 316,960,388.84

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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.