Finding the Fourth Proportional to 3,128,901.32, 4,685,413.14 and 2,622,129.68
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Solution
The fourth proportional to 3,128,901.32, 4,685,413.14 and 2,622,129.68 is: 3,926,541.49
Step by Step Solution
- Step 1: Write the proportion equation
3,128,901.32 : 4,685,413.14 = 2,622,129.68 : x - Step 2: Convert to fraction form
3,128,901.32/4,685,413.14 = 2,622,129.68/x - Step 3: Cross multiply
3,128,901.32x = 4,685,413.14 × 2,622,129.68 - Step 4: Simplify right side
3,128,901.32x = 12,285,760,857,455.99 - Step 5: Solve for x
x = 12,285,760,857,455.99/3,128,901.32 - Step 6: Final answer
x = 3,926,541.49
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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.