Finding the Fourth Proportional to 5,184,942.94, 7,777,788.08 and 1,990,069.12
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Solution
The fourth proportional to 5,184,942.94, 7,777,788.08 and 1,990,069.12 is: 2,985,247.09
Step by Step Solution
- Step 1: Write the proportion equation
5,184,942.94 : 7,777,788.08 = 1,990,069.12 : x - Step 2: Convert to fraction form
5,184,942.94/7,777,788.08 = 1,990,069.12/x - Step 3: Cross multiply
5,184,942.94x = 7,777,788.08 × 1,990,069.12 - Step 4: Simplify right side
5,184,942.94x = 15,478,335,847,128.06 - Step 5: Solve for x
x = 15,478,335,847,128.06/5,184,942.94 - Step 6: Final answer
x = 2,985,247.09
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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.