Finding the Fourth Proportional to 21,649,324.90, 29,876,104.39 and 11,859,555.65
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Solution
The fourth proportional to 21,649,324.90, 29,876,104.39 and 11,859,555.65 is: 16,366,206.53
Step by Step Solution
- Step 1: Write the proportion equation
21,649,324.90 : 29,876,104.39 = 11,859,555.65 : x - Step 2: Convert to fraction form
21,649,324.90/29,876,104.39 = 11,859,555.65/x - Step 3: Cross multiply
21,649,324.90x = 29,876,104.39 × 11,859,555.65 - Step 4: Simplify right side
21,649,324.90x = 354,317,322,618,414.31 - Step 5: Solve for x
x = 354,317,322,618,414.31/21,649,324.90 - Step 6: Final answer
x = 16,366,206.53
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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.