Finding the Fourth Proportional to 3,609,413.36, 4,980,989.76 and 2,159,169.92
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Solution
The fourth proportional to 3,609,413.36, 4,980,989.76 and 2,159,169.92 is: 2,979,654.08
Step by Step Solution
- Step 1: Write the proportion equation
3,609,413.36 : 4,980,989.76 = 2,159,169.92 : x - Step 2: Convert to fraction form
3,609,413.36/4,980,989.76 = 2,159,169.92/x - Step 3: Cross multiply
3,609,413.36x = 4,980,989.76 × 2,159,169.92 - Step 4: Simplify right side
3,609,413.36x = 10,754,803,261,620.02 - Step 5: Solve for x
x = 10,754,803,261,620.02/3,609,413.36 - Step 6: Final answer
x = 2,979,654.08
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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.