Finding the Fourth Proportional to 18,311,023.84, 25,257,718.84 and 10,863,413.07
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Solution
The fourth proportional to 18,311,023.84, 25,257,718.84 and 10,863,413.07 is: 14,984,690.94
Step by Step Solution
- Step 1: Write the proportion equation
18,311,023.84 : 25,257,718.84 = 10,863,413.07 : x - Step 2: Convert to fraction form
18,311,023.84/25,257,718.84 = 10,863,413.07/x - Step 3: Cross multiply
18,311,023.84x = 25,257,718.84 × 10,863,413.07 - Step 4: Simplify right side
18,311,023.84x = 274,385,032,964,841.25 - Step 5: Solve for x
x = 274,385,032,964,841.25/18,311,023.84 - Step 6: Final answer
x = 14,984,690.94
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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.