Finding the Fourth Proportional to 3,259,201,620.90, 4,888,802,431.35 and 1,188,990,920.10
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Solution
The fourth proportional to 3,259,201,620.90, 4,888,802,431.35 and 1,188,990,920.10 is: 1,783,486,380.15
Step by Step Solution
- Step 1: Write the proportion equation
3,259,201,620.90 : 4,888,802,431.35 = 1,188,990,920.10 : x - Step 2: Convert to fraction form
3,259,201,620.90/4,888,802,431.35 = 1,188,990,920.10/x - Step 3: Cross multiply
3,259,201,620.90x = 4,888,802,431.35 × 1,188,990,920.10 - Step 4: Simplify right side
3,259,201,620.90x = 5,812,741,701,037,954,048 - Step 5: Solve for x
x = 5,812,741,701,037,954,048/3,259,201,620.90 - Step 6: Final answer
x = 1,783,486,380.15
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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.