Finding the Fourth Proportional to 7,990,268,957.18, 11,988,065,206.16 and 2,678,906,683.84
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Solution
The fourth proportional to 7,990,268,957.18, 11,988,065,206.16 and 2,678,906,683.84 is: 4,019,252,440.59
Step by Step Solution
- Step 1: Write the proportion equation
7,990,268,957.18 : 11,988,065,206.16 = 2,678,906,683.84 : x - Step 2: Convert to fraction form
7,990,268,957.18/11,988,065,206.16 = 2,678,906,683.84/x - Step 3: Cross multiply
7,990,268,957.18x = 11,988,065,206.16 × 2,678,906,683.84 - Step 4: Simplify right side
7,990,268,957.18x = 32,114,908,007,091,773,440 - Step 5: Solve for x
x = 32,114,908,007,091,773,440/7,990,268,957.18 - Step 6: Final answer
x = 4,019,252,440.59
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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.