Home / 621,111,920.20-930,876,623.70-330,118,448.20

Finding the Fourth Proportional to 621,111,920.20, 930,876,623.70 and 330,118,448.20

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Solution

The fourth proportional to 621,111,920.20, 930,876,623.70 and 330,118,448.20 is: 494,757,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,111,920.20 : 930,876,623.70 = 330,118,448.20 : x
  2. Step 2: Convert to fraction form
    621,111,920.20/930,876,623.70 = 330,118,448.20/x
  3. Step 3: Cross multiply
    621,111,920.20x = 930,876,623.70 × 330,118,448.20
  4. Step 4: Simplify right side
    621,111,920.20x = 307,299,546,481,499,328
  5. Step 5: Solve for x
    x = 307,299,546,481,499,328/621,111,920.20
  6. Step 6: Final answer
    x = 494,757,122.65

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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.