Finding the Fourth Proportional to 13,347,714.22, 18,421,218.71 and 8,121,093.55
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Solution
The fourth proportional to 13,347,714.22, 18,421,218.71 and 8,121,093.55 is: 11,207,944.52
Step by Step Solution
- Step 1: Write the proportion equation
13,347,714.22 : 18,421,218.71 = 8,121,093.55 : x - Step 2: Convert to fraction form
13,347,714.22/18,421,218.71 = 8,121,093.55/x - Step 3: Cross multiply
13,347,714.22x = 18,421,218.71 × 8,121,093.55 - Step 4: Simplify right side
13,347,714.22x = 149,600,440,448,920.31 - Step 5: Solve for x
x = 149,600,440,448,920.31/13,347,714.22 - Step 6: Final answer
x = 11,207,944.52
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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.