Home / 621,105,469.20-930,866,947.20-330,111,997.20

Finding the Fourth Proportional to 621,105,469.20, 930,866,947.20 and 330,111,997.20

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Solution

The fourth proportional to 621,105,469.20, 930,866,947.20 and 330,111,997.20 is: 494,747,450.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,105,469.20 : 930,866,947.20 = 330,111,997.20 : x
  2. Step 2: Convert to fraction form
    621,105,469.20/930,866,947.20 = 330,111,997.20/x
  3. Step 3: Cross multiply
    621,105,469.20x = 930,866,947.20 × 330,111,997.20
  4. Step 4: Simplify right side
    621,105,469.20x = 307,290,347,067,658,944
  5. Step 5: Solve for x
    x = 307,290,347,067,658,944/621,105,469.20
  6. Step 6: Final answer
    x = 494,747,450.00

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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.