Home / 454,681,997.20-682,022,995.80-408,765,494.80

Finding the Fourth Proportional to 454,681,997.20, 682,022,995.80 and 408,765,494.80

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Solution

The fourth proportional to 454,681,997.20, 682,022,995.80 and 408,765,494.80 is: 613,148,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,681,997.20 : 682,022,995.80 = 408,765,494.80 : x
  2. Step 2: Convert to fraction form
    454,681,997.20/682,022,995.80 = 408,765,494.80/x
  3. Step 3: Cross multiply
    454,681,997.20x = 682,022,995.80 × 408,765,494.80
  4. Step 4: Simplify right side
    454,681,997.20x = 278,787,467,343,165,312
  5. Step 5: Solve for x
    x = 278,787,467,343,165,312/454,681,997.20
  6. Step 6: Final answer
    x = 613,148,242.20

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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.