Home / 3,969,765,891.90-5,954,648,837.85-3,908,543,888.70

Finding the Fourth Proportional to 3,969,765,891.90, 5,954,648,837.85 and 3,908,543,888.70

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Solution

The fourth proportional to 3,969,765,891.90, 5,954,648,837.85 and 3,908,543,888.70 is: 5,862,815,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,765,891.90 : 5,954,648,837.85 = 3,908,543,888.70 : x
  2. Step 2: Convert to fraction form
    3,969,765,891.90/5,954,648,837.85 = 3,908,543,888.70/x
  3. Step 3: Cross multiply
    3,969,765,891.90x = 5,954,648,837.85 × 3,908,543,888.70
  4. Step 4: Simplify right side
    3,969,765,891.90x = 23,274,006,324,533,174,272
  5. Step 5: Solve for x
    x = 23,274,006,324,533,174,272/3,969,765,891.90
  6. Step 6: Final answer
    x = 5,862,815,833.05

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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.