Home / 1,212,940,198.20-1,819,410,297.30-395,052,499.20

Finding the Fourth Proportional to 1,212,940,198.20, 1,819,410,297.30 and 395,052,499.20

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Solution

The fourth proportional to 1,212,940,198.20, 1,819,410,297.30 and 395,052,499.20 is: 592,578,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,940,198.20 : 1,819,410,297.30 = 395,052,499.20 : x
  2. Step 2: Convert to fraction form
    1,212,940,198.20/1,819,410,297.30 = 395,052,499.20/x
  3. Step 3: Cross multiply
    1,212,940,198.20x = 1,819,410,297.30 × 395,052,499.20
  4. Step 4: Simplify right side
    1,212,940,198.20x = 718,762,585,018,579,968
  5. Step 5: Solve for x
    x = 718,762,585,018,579,968/1,212,940,198.20
  6. Step 6: Final answer
    x = 592,578,748.80

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1.5x scale

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.