Finding the Fourth Proportional to 55,511,413.79, 76,613,767.88 and 31,985,446.41
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Solution
The fourth proportional to 55,511,413.79, 76,613,767.88 and 31,985,446.41 is: 44,144,535.32
Step by Step Solution
- Step 1: Write the proportion equation
55,511,413.79 : 76,613,767.88 = 31,985,446.41 : x - Step 2: Convert to fraction form
55,511,413.79/76,613,767.88 = 31,985,446.41/x - Step 3: Cross multiply
55,511,413.79x = 76,613,767.88 × 31,985,446.41 - Step 4: Simplify right side
55,511,413.79x = 2,450,525,566,633,992 - Step 5: Solve for x
x = 2,450,525,566,633,992/55,511,413.79 - Step 6: Final answer
x = 44,144,535.32
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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.