Home / 425,761,604.20-638,642,406.30-382,679,453.80

Finding the Fourth Proportional to 425,761,604.20, 638,642,406.30 and 382,679,453.80

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Solution

The fourth proportional to 425,761,604.20, 638,642,406.30 and 382,679,453.80 is: 574,019,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,761,604.20 : 638,642,406.30 = 382,679,453.80 : x
  2. Step 2: Convert to fraction form
    425,761,604.20/638,642,406.30 = 382,679,453.80/x
  3. Step 3: Cross multiply
    425,761,604.20x = 638,642,406.30 × 382,679,453.80
  4. Step 4: Simplify right side
    425,761,604.20x = 244,395,327,216,401,664
  5. Step 5: Solve for x
    x = 244,395,327,216,401,664/425,761,604.20
  6. Step 6: Final answer
    x = 574,019,180.70

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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.