Home / 1,212,940,131.20-1,819,410,196.80-395,052,432.20

Finding the Fourth Proportional to 1,212,940,131.20, 1,819,410,196.80 and 395,052,432.20

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Solution

The fourth proportional to 1,212,940,131.20, 1,819,410,196.80 and 395,052,432.20 is: 592,578,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,940,131.20 : 1,819,410,196.80 = 395,052,432.20 : x
  2. Step 2: Convert to fraction form
    1,212,940,131.20/1,819,410,196.80 = 395,052,432.20/x
  3. Step 3: Cross multiply
    1,212,940,131.20x = 1,819,410,196.80 × 395,052,432.20
  4. Step 4: Simplify right side
    1,212,940,131.20x = 718,762,423,415,320,576
  5. Step 5: Solve for x
    x = 718,762,423,415,320,576/1,212,940,131.20
  6. Step 6: Final answer
    x = 592,578,648.30

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Double scale
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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.