Finding the Fourth Proportional to 18,376,942.20, 27,565,413.30 and 13,593,973.20
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Solution
The fourth proportional to 18,376,942.20, 27,565,413.30 and 13,593,973.20 is: 20,390,959.80
Step by Step Solution
- Step 1: Write the proportion equation
18,376,942.20 : 27,565,413.30 = 13,593,973.20 : x - Step 2: Convert to fraction form
18,376,942.20/27,565,413.30 = 13,593,973.20/x - Step 3: Cross multiply
18,376,942.20x = 27,565,413.30 × 13,593,973.20 - Step 4: Simplify right side
18,376,942.20x = 374,723,489,647,123.56 - Step 5: Solve for x
x = 374,723,489,647,123.56/18,376,942.20 - Step 6: Final answer
x = 20,390,959.80
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1.5x scale
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.