Home / 645,149,654.40-967,724,481.60-214,328,150.40

Finding the Fourth Proportional to 645,149,654.40, 967,724,481.60 and 214,328,150.40

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Solution

The fourth proportional to 645,149,654.40, 967,724,481.60 and 214,328,150.40 is: 321,492,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,149,654.40 : 967,724,481.60 = 214,328,150.40 : x
  2. Step 2: Convert to fraction form
    645,149,654.40/967,724,481.60 = 214,328,150.40/x
  3. Step 3: Cross multiply
    645,149,654.40x = 967,724,481.60 × 214,328,150.40
  4. Step 4: Simplify right side
    645,149,654.40x = 207,410,598,238,126,848
  5. Step 5: Solve for x
    x = 207,410,598,238,126,848/645,149,654.40
  6. Step 6: Final answer
    x = 321,492,225.60

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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.