Finding the Fourth Proportional to 39,192,814.68, 54,083,020.28 and 21,788,100.06
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Solution
The fourth proportional to 39,192,814.68, 54,083,020.28 and 21,788,100.06 is: 30,065,874.75
Step by Step Solution
- Step 1: Write the proportion equation
39,192,814.68 : 54,083,020.28 = 21,788,100.06 : x - Step 2: Convert to fraction form
39,192,814.68/54,083,020.28 = 21,788,100.06/x - Step 3: Cross multiply
39,192,814.68x = 54,083,020.28 × 21,788,100.06 - Step 4: Simplify right side
39,192,814.68x = 1,178,366,257,407,649.25 - Step 5: Solve for x
x = 1,178,366,257,407,649.25/39,192,814.68 - Step 6: Final answer
x = 30,065,874.75
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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.