Home / 645,122,309.20-967,683,463.80-214,300,805.20

Finding the Fourth Proportional to 645,122,309.20, 967,683,463.80 and 214,300,805.20

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Solution

The fourth proportional to 645,122,309.20, 967,683,463.80 and 214,300,805.20 is: 321,451,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,122,309.20 : 967,683,463.80 = 214,300,805.20 : x
  2. Step 2: Convert to fraction form
    645,122,309.20/967,683,463.80 = 214,300,805.20/x
  3. Step 3: Cross multiply
    645,122,309.20x = 967,683,463.80 × 214,300,805.20
  4. Step 4: Simplify right side
    645,122,309.20x = 207,375,345,471,065,024
  5. Step 5: Solve for x
    x = 207,375,345,471,065,024/645,122,309.20
  6. Step 6: Final answer
    x = 321,451,207.80

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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.