Finding the Fourth Proportional to 7,990,268,956.18, 11,988,065,204.66 and 2,678,906,682.84
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Solution
The fourth proportional to 7,990,268,956.18, 11,988,065,204.66 and 2,678,906,682.84 is: 4,019,252,439.08
Step by Step Solution
- Step 1: Write the proportion equation
7,990,268,956.18 : 11,988,065,204.66 = 2,678,906,682.84 : x - Step 2: Convert to fraction form
7,990,268,956.18/11,988,065,204.66 = 2,678,906,682.84/x - Step 3: Cross multiply
7,990,268,956.18x = 11,988,065,204.66 × 2,678,906,682.84 - Step 4: Simplify right side
7,990,268,956.18x = 32,114,907,991,061,368,832 - Step 5: Solve for x
x = 32,114,907,991,061,368,832/7,990,268,956.18 - Step 6: Final answer
x = 4,019,252,439.08
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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.