Home / 3,928,002,200.92-5,420,566,200.54-2,143,868,443.03

Finding the Fourth Proportional to 3,928,002,200.92, 5,420,566,200.54 and 2,143,868,443.03

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Solution

The fourth proportional to 3,928,002,200.92, 5,420,566,200.54 and 2,143,868,443.03 is: 2,958,496,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,002,200.92 : 5,420,566,200.54 = 2,143,868,443.03 : x
  2. Step 2: Convert to fraction form
    3,928,002,200.92/5,420,566,200.54 = 2,143,868,443.03/x
  3. Step 3: Cross multiply
    3,928,002,200.92x = 5,420,566,200.54 × 2,143,868,443.03
  4. Step 4: Simplify right side
    3,928,002,200.92x = 11,620,980,820,692,731,904
  5. Step 5: Solve for x
    x = 11,620,980,820,692,731,904/3,928,002,200.92
  6. Step 6: Final answer
    x = 2,958,496,514.58

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1.5x scale

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.