Finding the Fourth Proportional to 3,855,413.80, 5,320,501.86 and 2,136,562.84
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Solution
The fourth proportional to 3,855,413.80, 5,320,501.86 and 2,136,562.84 is: 2,948,473.80
Step by Step Solution
- Step 1: Write the proportion equation
3,855,413.80 : 5,320,501.86 = 2,136,562.84 : x - Step 2: Convert to fraction form
3,855,413.80/5,320,501.86 = 2,136,562.84/x - Step 3: Cross multiply
3,855,413.80x = 5,320,501.86 × 2,136,562.84 - Step 4: Simplify right side
3,855,413.80x = 11,367,586,564,226.88 - Step 5: Solve for x
x = 11,367,586,564,226.88/3,855,413.80 - Step 6: Final answer
x = 2,948,473.80
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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.