Home / 3,969,765,902.40-5,954,648,853.60-3,908,543,899.20

Finding the Fourth Proportional to 3,969,765,902.40, 5,954,648,853.60 and 3,908,543,899.20

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Solution

The fourth proportional to 3,969,765,902.40, 5,954,648,853.60 and 3,908,543,899.20 is: 5,862,815,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,765,902.40 : 5,954,648,853.60 = 3,908,543,899.20 : x
  2. Step 2: Convert to fraction form
    3,969,765,902.40/5,954,648,853.60 = 3,908,543,899.20/x
  3. Step 3: Cross multiply
    3,969,765,902.40x = 5,954,648,853.60 × 3,908,543,899.20
  4. Step 4: Simplify right side
    3,969,765,902.40x = 23,274,006,448,616,554,496
  5. Step 5: Solve for x
    x = 23,274,006,448,616,554,496/3,969,765,902.40
  6. Step 6: Final answer
    x = 5,862,815,848.80

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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.