Finding the Fourth Proportional to 5,260,919.08, 7,891,684.80 and 1,474,697.20
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Solution
The fourth proportional to 5,260,919.08, 7,891,684.80 and 1,474,697.20 is: 2,212,131.63
Step by Step Solution
- Step 1: Write the proportion equation
5,260,919.08 : 7,891,684.80 = 1,474,697.20 : x - Step 2: Convert to fraction form
5,260,919.08/7,891,684.80 = 1,474,697.20/x - Step 3: Cross multiply
5,260,919.08x = 7,891,684.80 × 1,474,697.20 - Step 4: Simplify right side
5,260,919.08x = 11,637,845,477,842.56 - Step 5: Solve for x
x = 11,637,845,477,842.56/5,260,919.08 - Step 6: Final answer
x = 2,212,131.63
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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.