Finding the Fourth Proportional to 3,161,718.70, 4,363,182.72 and 1,711,413.75
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Solution
The fourth proportional to 3,161,718.70, 4,363,182.72 and 1,711,413.75 is: 2,361,756.88
Step by Step Solution
- Step 1: Write the proportion equation
3,161,718.70 : 4,363,182.72 = 1,711,413.75 : x - Step 2: Convert to fraction form
3,161,718.70/4,363,182.72 = 1,711,413.75/x - Step 3: Cross multiply
3,161,718.70x = 4,363,182.72 × 1,711,413.75 - Step 4: Simplify right side
3,161,718.70x = 7,467,210,900,770.40 - Step 5: Solve for x
x = 7,467,210,900,770.40/3,161,718.70 - Step 6: Final answer
x = 2,361,756.88
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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.