Finding the Fourth Proportional to 5,184,956.62, 7,777,808.64 and 1,990,082.80
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Solution
The fourth proportional to 5,184,956.62, 7,777,808.64 and 1,990,082.80 is: 2,985,267.64
Step by Step Solution
- Step 1: Write the proportion equation
5,184,956.62 : 7,777,808.64 = 1,990,082.80 : x - Step 2: Convert to fraction form
5,184,956.62/7,777,808.64 = 1,990,082.80/x - Step 3: Cross multiply
5,184,956.62x = 7,777,808.64 × 1,990,082.80 - Step 4: Simplify right side
5,184,956.62x = 15,478,483,196,155.39 - Step 5: Solve for x
x = 15,478,483,196,155.39/5,184,956.62 - Step 6: Final answer
x = 2,985,267.64
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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.