Home / 645,152,815.40-967,729,223.10-214,331,311.40

Finding the Fourth Proportional to 645,152,815.40, 967,729,223.10 and 214,331,311.40

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Solution

The fourth proportional to 645,152,815.40, 967,729,223.10 and 214,331,311.40 is: 321,496,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,152,815.40 : 967,729,223.10 = 214,331,311.40 : x
  2. Step 2: Convert to fraction form
    645,152,815.40/967,729,223.10 = 214,331,311.40/x
  3. Step 3: Cross multiply
    645,152,815.40x = 967,729,223.10 × 214,331,311.40
  4. Step 4: Simplify right side
    645,152,815.40x = 207,414,673,467,126,176
  5. Step 5: Solve for x
    x = 207,414,673,467,126,176/645,152,815.40
  6. Step 6: Final answer
    x = 321,496,967.10

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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.