Finding the Fourth Proportional to 11,490,838.74, 15,857,354.21 and 6,334,286.40
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Solution
The fourth proportional to 11,490,838.74, 15,857,354.21 and 6,334,286.40 is: 8,741,313.44
Step by Step Solution
- Step 1: Write the proportion equation
11,490,838.74 : 15,857,354.21 = 6,334,286.40 : x - Step 2: Convert to fraction form
11,490,838.74/15,857,354.21 = 6,334,286.40/x - Step 3: Cross multiply
11,490,838.74x = 15,857,354.21 × 6,334,286.40 - Step 4: Simplify right side
11,490,838.74x = 100,445,023,080,714.31 - Step 5: Solve for x
x = 100,445,023,080,714.31/11,490,838.74 - Step 6: Final answer
x = 8,741,313.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.