Finding the Fourth Proportional to 568,678,446.08, 853,017,669.12 and 137,856,942.08
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Solution
The fourth proportional to 568,678,446.08, 853,017,669.12 and 137,856,942.08 is: 206,785,413.12
Step by Step Solution
- Step 1: Write the proportion equation
568,678,446.08 : 853,017,669.12 = 137,856,942.08 : x - Step 2: Convert to fraction form
568,678,446.08/853,017,669.12 = 137,856,942.08/x - Step 3: Cross multiply
568,678,446.08x = 853,017,669.12 × 137,856,942.08 - Step 4: Simplify right side
568,678,446.08x = 117,594,407,405,092,464 - Step 5: Solve for x
x = 117,594,407,405,092,464/568,678,446.08 - Step 6: Final answer
x = 206,785,413.12
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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.