Finding the Fourth Proportional to 2,129,413.92, 3,190,511.76 and 1,286,194.08
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Solution
The fourth proportional to 2,129,413.92, 3,190,511.76 and 1,286,194.08 is: 1,927,111.16
Step by Step Solution
- Step 1: Write the proportion equation
2,129,413.92 : 3,190,511.76 = 1,286,194.08 : x - Step 2: Convert to fraction form
2,129,413.92/3,190,511.76 = 1,286,194.08/x - Step 3: Cross multiply
2,129,413.92x = 3,190,511.76 × 1,286,194.08 - Step 4: Simplify right side
2,129,413.92x = 4,103,617,337,882.38 - Step 5: Solve for x
x = 4,103,617,337,882.38/2,129,413.92 - Step 6: Final answer
x = 1,927,111.16
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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.