Home / 720,321,363.24-994,054,767.12-422,970,180.72

Finding the Fourth Proportional to 720,321,363.24, 994,054,767.12 and 422,970,180.72

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Solution

The fourth proportional to 720,321,363.24, 994,054,767.12 and 422,970,180.72 is: 583,705,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,321,363.24 : 994,054,767.12 = 422,970,180.72 : x
  2. Step 2: Convert to fraction form
    720,321,363.24/994,054,767.12 = 422,970,180.72/x
  3. Step 3: Cross multiply
    720,321,363.24x = 994,054,767.12 × 422,970,180.72
  4. Step 4: Simplify right side
    720,321,363.24x = 420,455,524,494,323,968
  5. Step 5: Solve for x
    x = 420,455,524,494,323,968/720,321,363.24
  6. Step 6: Final answer
    x = 583,705,476.40

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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.