Finding the Fourth Proportional to 18,664,334.26, 27,990,449.47 and 7,149,188.77
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Solution
The fourth proportional to 18,664,334.26, 27,990,449.47 and 7,149,188.77 is: 10,721,465.03
Step by Step Solution
- Step 1: Write the proportion equation
18,664,334.26 : 27,990,449.47 = 7,149,188.77 : x - Step 2: Convert to fraction form
18,664,334.26/27,990,449.47 = 7,149,188.77/x - Step 3: Cross multiply
18,664,334.26x = 27,990,449.47 × 7,149,188.77 - Step 4: Simplify right side
18,664,334.26x = 200,109,007,018,176.44 - Step 5: Solve for x
x = 200,109,007,018,176.44/18,664,334.26 - Step 6: Final answer
x = 10,721,465.03
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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.