Finding the Fourth Proportional to 21,152,147.26, 29,198,891.98 and 14,285,929.54
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Solution
The fourth proportional to 21,152,147.26, 29,198,891.98 and 14,285,929.54 is: 19,720,613.15
Step by Step Solution
- Step 1: Write the proportion equation
21,152,147.26 : 29,198,891.98 = 14,285,929.54 : x - Step 2: Convert to fraction form
21,152,147.26/29,198,891.98 = 14,285,929.54/x - Step 3: Cross multiply
21,152,147.26x = 29,198,891.98 × 14,285,929.54 - Step 4: Simplify right side
21,152,147.26x = 417,133,313,472,351.06 - Step 5: Solve for x
x = 417,133,313,472,351.06/21,152,147.26 - Step 6: Final answer
x = 19,720,613.15
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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.