Finding the Fourth Proportional to 726,778,205.61, 1,002,957,997.55 and 413,512,413.09
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Solution
The fourth proportional to 726,778,205.61, 1,002,957,997.55 and 413,512,413.09 is: 570,649,447.92
Step by Step Solution
- Step 1: Write the proportion equation
726,778,205.61 : 1,002,957,997.55 = 413,512,413.09 : x - Step 2: Convert to fraction form
726,778,205.61/1,002,957,997.55 = 413,512,413.09/x - Step 3: Cross multiply
726,778,205.61x = 1,002,957,997.55 × 413,512,413.09 - Step 4: Simplify right side
726,778,205.61x = 414,735,581,794,814,784 - Step 5: Solve for x
x = 414,735,581,794,814,784/726,778,205.61 - Step 6: Final answer
x = 570,649,447.92
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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.