Finding the Fourth Proportional to 2,678,207,182.26, 4,017,323,603.79 and 812,869,081.62
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Solution
The fourth proportional to 2,678,207,182.26, 4,017,323,603.79 and 812,869,081.62 is: 1,219,307,516.62
Step by Step Solution
- Step 1: Write the proportion equation
2,678,207,182.26 : 4,017,323,603.79 = 812,869,081.62 : x - Step 2: Convert to fraction form
2,678,207,182.26/4,017,323,603.79 = 812,869,081.62/x - Step 3: Cross multiply
2,678,207,182.26x = 4,017,323,603.79 × 812,869,081.62 - Step 4: Simplify right side
2,678,207,182.26x = 3,265,558,148,383,126,016 - Step 5: Solve for x
x = 3,265,558,148,383,126,016/2,678,207,182.26 - Step 6: Final answer
x = 1,219,307,516.62
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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.