Finding the Fourth Proportional to 19,987,940.99, 27,583,367.85 and 10,820,583.74
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Solution
The fourth proportional to 19,987,940.99, 27,583,367.85 and 10,820,583.74 is: 14,932,410.58
Step by Step Solution
- Step 1: Write the proportion equation
19,987,940.99 : 27,583,367.85 = 10,820,583.74 : x - Step 2: Convert to fraction form
19,987,940.99/27,583,367.85 = 10,820,583.74/x - Step 3: Cross multiply
19,987,940.99x = 27,583,367.85 × 10,820,583.74 - Step 4: Simplify right side
19,987,940.99x = 298,468,141,514,231.94 - Step 5: Solve for x
x = 298,468,141,514,231.94/19,987,940.99 - Step 6: Final answer
x = 14,932,410.58
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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.