Finding the Fourth Proportional to 20,922,525.99, 31,383,745.25 and 5,776,413.75
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Solution
The fourth proportional to 20,922,525.99, 31,383,745.25 and 5,776,413.75 is: 8,664,608.55
Step by Step Solution
- Step 1: Write the proportion equation
20,922,525.99 : 31,383,745.25 = 5,776,413.75 : x - Step 2: Convert to fraction form
20,922,525.99/31,383,745.25 = 5,776,413.75/x - Step 3: Cross multiply
20,922,525.99x = 31,383,745.25 × 5,776,413.75 - Step 4: Simplify right side
20,922,525.99x = 181,285,497,559,715.12 - Step 5: Solve for x
x = 181,285,497,559,715.12/20,922,525.99 - Step 6: Final answer
x = 8,664,608.55
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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.