Finding the Fourth Proportional to 4,920,355,647.27, 6,790,086,405.93 and 2,777,413,370.53
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Solution
The fourth proportional to 4,920,355,647.27, 6,790,086,405.93 and 2,777,413,370.53 is: 3,832,827,974.81
Step by Step Solution
- Step 1: Write the proportion equation
4,920,355,647.27 : 6,790,086,405.93 = 2,777,413,370.53 : x - Step 2: Convert to fraction form
4,920,355,647.27/6,790,086,405.93 = 2,777,413,370.53/x - Step 3: Cross multiply
4,920,355,647.27x = 6,790,086,405.93 × 2,777,413,370.53 - Step 4: Simplify right side
4,920,355,647.27x = 18,858,876,770,867,003,392 - Step 5: Solve for x
x = 18,858,876,770,867,003,392/4,920,355,647.27 - Step 6: Final answer
x = 3,832,827,974.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.