Home / 3,990,147,888.20-5,985,221,832.30-2,520,819,811.40

Finding the Fourth Proportional to 3,990,147,888.20, 5,985,221,832.30 and 2,520,819,811.40

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Solution

The fourth proportional to 3,990,147,888.20, 5,985,221,832.30 and 2,520,819,811.40 is: 3,781,229,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,147,888.20 : 5,985,221,832.30 = 2,520,819,811.40 : x
  2. Step 2: Convert to fraction form
    3,990,147,888.20/5,985,221,832.30 = 2,520,819,811.40/x
  3. Step 3: Cross multiply
    3,990,147,888.20x = 5,985,221,832.30 × 2,520,819,811.40
  4. Step 4: Simplify right side
    3,990,147,888.20x = 15,087,665,770,485,649,408
  5. Step 5: Solve for x
    x = 15,087,665,770,485,649,408/3,990,147,888.20
  6. Step 6: Final answer
    x = 3,781,229,717.10

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Double scale
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Similar ratio
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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.