Finding the Fourth Proportional to 5,390,413.67, 7,438,933.63 and 3,067,639.38
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Solution
The fourth proportional to 5,390,413.67, 7,438,933.63 and 3,067,639.38 is: 4,233,434.96
Step by Step Solution
- Step 1: Write the proportion equation
5,390,413.67 : 7,438,933.63 = 3,067,639.38 : x - Step 2: Convert to fraction form
5,390,413.67/7,438,933.63 = 3,067,639.38/x - Step 3: Cross multiply
5,390,413.67x = 7,438,933.63 × 3,067,639.38 - Step 4: Simplify right side
5,390,413.67x = 22,819,965,699,288.49 - Step 5: Solve for x
x = 22,819,965,699,288.49/5,390,413.67 - Step 6: Final answer
x = 4,233,434.96
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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.