Finding the Fourth Proportional to 18,440,274.40, 25,450,909.74 and 10,998,413.68
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Solution
The fourth proportional to 18,440,274.40, 25,450,909.74 and 10,998,413.68 is: 15,179,797.64
Step by Step Solution
- Step 1: Write the proportion equation
18,440,274.40 : 25,450,909.74 = 10,998,413.68 : x - Step 2: Convert to fraction form
18,440,274.40/25,450,909.74 = 10,998,413.68/x - Step 3: Cross multiply
18,440,274.40x = 25,450,909.74 × 10,998,413.68 - Step 4: Simplify right side
18,440,274.40x = 279,919,633,852,861.22 - Step 5: Solve for x
x = 279,919,633,852,861.22/18,440,274.40 - Step 6: Final answer
x = 15,179,797.64
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1.5x scale
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.