Finding the Fourth Proportional to 13,138,974.30, 18,000,094.10 and 12,647,736.84
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Solution
The fourth proportional to 13,138,974.30, 18,000,094.10 and 12,647,736.84 is: 17,327,110.02
Step by Step Solution
- Step 1: Write the proportion equation
13,138,974.30 : 18,000,094.10 = 12,647,736.84 : x - Step 2: Convert to fraction form
13,138,974.30/18,000,094.10 = 12,647,736.84/x - Step 3: Cross multiply
13,138,974.30x = 18,000,094.10 × 12,647,736.84 - Step 4: Simplify right side
13,138,974.30x = 227,660,453,208,797.94 - Step 5: Solve for x
x = 227,660,453,208,797.94/13,138,974.30 - Step 6: Final answer
x = 17,327,110.02
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.