Home / 720,642,481,563.25-994,420,892,433.05-427,616,904,363.48

Finding the Fourth Proportional to 720,642,481,563.25, 994,420,892,433.05 and 427,616,904,363.48

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Solution

The fourth proportional to 720,642,481,563.25, 994,420,892,433.05 and 427,616,904,363.48 is: 590,072,323,705.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,642,481,563.25 : 994,420,892,433.05 = 427,616,904,363.48 : x
  2. Step 2: Convert to fraction form
    720,642,481,563.25/994,420,892,433.05 = 427,616,904,363.48/x
  3. Step 3: Cross multiply
    720,642,481,563.25x = 994,420,892,433.05 × 427,616,904,363.48
  4. Step 4: Simplify right side
    720,642,481,563.25x = 425,231,183,656,589,958,578,176
  5. Step 5: Solve for x
    x = 425,231,183,656,589,958,578,176/720,642,481,563.25
  6. Step 6: Final answer
    x = 590,072,323,705.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.