Finding the Fourth Proportional to 39,278,514.97, 54,206,032.41 and 21,874,860.18
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Solution
The fourth proportional to 39,278,514.97, 54,206,032.41 and 21,874,860.18 is: 30,188,243.64
Step by Step Solution
- Step 1: Write the proportion equation
39,278,514.97 : 54,206,032.41 = 21,874,860.18 : x - Step 2: Convert to fraction form
39,278,514.97/54,206,032.41 = 21,874,860.18/x - Step 3: Cross multiply
39,278,514.97x = 54,206,032.41 × 21,874,860.18 - Step 4: Simplify right side
39,278,514.97x = 1,185,749,379,881,298.25 - Step 5: Solve for x
x = 1,185,749,379,881,298.25/39,278,514.97 - Step 6: Final answer
x = 30,188,243.64
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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.