Home / 645,152,814.40-967,729,221.60-214,331,310.40

Finding the Fourth Proportional to 645,152,814.40, 967,729,221.60 and 214,331,310.40

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Solution

The fourth proportional to 645,152,814.40, 967,729,221.60 and 214,331,310.40 is: 321,496,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,152,814.40 : 967,729,221.60 = 214,331,310.40 : x
  2. Step 2: Convert to fraction form
    645,152,814.40/967,729,221.60 = 214,331,310.40/x
  3. Step 3: Cross multiply
    645,152,814.40x = 967,729,221.60 × 214,331,310.40
  4. Step 4: Simplify right side
    645,152,814.40x = 207,414,672,177,900,000
  5. Step 5: Solve for x
    x = 207,414,672,177,900,000/645,152,814.40
  6. Step 6: Final answer
    x = 321,496,965.60

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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.