Home / 3,927,199,325.96-5,419,649,520.61-2,143,167,690.78

Finding the Fourth Proportional to 3,927,199,325.96, 5,419,649,520.61 and 2,143,167,690.78

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Solution

The fourth proportional to 3,927,199,325.96, 5,419,649,520.61 and 2,143,167,690.78 is: 2,957,633,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927,199,325.96 : 5,419,649,520.61 = 2,143,167,690.78 : x
  2. Step 2: Convert to fraction form
    3,927,199,325.96/5,419,649,520.61 = 2,143,167,690.78/x
  3. Step 3: Cross multiply
    3,927,199,325.96x = 5,419,649,520.61 × 2,143,167,690.78
  4. Step 4: Simplify right side
    3,927,199,325.96x = 11,615,217,747,917,309,952
  5. Step 5: Solve for x
    x = 11,615,217,747,917,309,952/3,927,199,325.96
  6. Step 6: Final answer
    x = 2,957,633,871.84

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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.