Home / 3,138,466,998.40-4,707,700,497.60-2,648,690,972.80

Finding the Fourth Proportional to 3,138,466,998.40, 4,707,700,497.60 and 2,648,690,972.80

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Solution

The fourth proportional to 3,138,466,998.40, 4,707,700,497.60 and 2,648,690,972.80 is: 3,973,036,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,466,998.40 : 4,707,700,497.60 = 2,648,690,972.80 : x
  2. Step 2: Convert to fraction form
    3,138,466,998.40/4,707,700,497.60 = 2,648,690,972.80/x
  3. Step 3: Cross multiply
    3,138,466,998.40x = 4,707,700,497.60 × 2,648,690,972.80
  4. Step 4: Simplify right side
    3,138,466,998.40x = 12,469,243,810,639,190,016
  5. Step 5: Solve for x
    x = 12,469,243,810,639,190,016/3,138,466,998.40
  6. Step 6: Final answer
    x = 3,973,036,459.20

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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.