Home / 2,808,108,002.20-4,212,162,003.30-1,991,814,626.20

Finding the Fourth Proportional to 2,808,108,002.20, 4,212,162,003.30 and 1,991,814,626.20

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Solution

The fourth proportional to 2,808,108,002.20, 4,212,162,003.30 and 1,991,814,626.20 is: 2,987,721,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,108,002.20 : 4,212,162,003.30 = 1,991,814,626.20 : x
  2. Step 2: Convert to fraction form
    2,808,108,002.20/4,212,162,003.30 = 1,991,814,626.20/x
  3. Step 3: Cross multiply
    2,808,108,002.20x = 4,212,162,003.30 × 1,991,814,626.20
  4. Step 4: Simplify right side
    2,808,108,002.20x = 8,389,845,886,096,833,536
  5. Step 5: Solve for x
    x = 8,389,845,886,096,833,536/2,808,108,002.20
  6. Step 6: Final answer
    x = 2,987,721,939.30

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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.