Finding the Fourth Proportional to 21,514,236.14, 32,278,176.23 and 7,680,898.10
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Solution
The fourth proportional to 21,514,236.14, 32,278,176.23 and 7,680,898.10 is: 11,523,782.70
Step by Step Solution
- Step 1: Write the proportion equation
21,514,236.14 : 32,278,176.23 = 7,680,898.10 : x - Step 2: Convert to fraction form
21,514,236.14/32,278,176.23 = 7,680,898.10/x - Step 3: Cross multiply
21,514,236.14x = 32,278,176.23 × 7,680,898.10 - Step 4: Simplify right side
21,514,236.14x = 247,925,382,276,676.78 - Step 5: Solve for x
x = 247,925,382,276,676.78/21,514,236.14 - Step 6: Final answer
x = 11,523,782.70
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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.