Finding the Fourth Proportional to 36,218,131.68, 49,981,967.28 and 19,921,035.36
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Solution
The fourth proportional to 36,218,131.68, 49,981,967.28 and 19,921,035.36 is: 27,491,548.88
Step by Step Solution
- Step 1: Write the proportion equation
36,218,131.68 : 49,981,967.28 = 19,921,035.36 : x - Step 2: Convert to fraction form
36,218,131.68/49,981,967.28 = 19,921,035.36/x - Step 3: Cross multiply
36,218,131.68x = 49,981,967.28 × 19,921,035.36 - Step 4: Simplify right side
36,218,131.68x = 995,692,537,547,243 - Step 5: Solve for x
x = 995,692,537,547,243/36,218,131.68 - Step 6: Final answer
x = 27,491,548.88
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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.