Finding the Fourth Proportional to 39,391,934.49, 54,351,295.79 and 23,091,261.21
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Solution
The fourth proportional to 39,391,934.49, 54,351,295.79 and 23,091,261.21 is: 31,860,328.37
Step by Step Solution
- Step 1: Write the proportion equation
39,391,934.49 : 54,351,295.79 = 23,091,261.21 : x - Step 2: Convert to fraction form
39,391,934.49/54,351,295.79 = 23,091,261.21/x - Step 3: Cross multiply
39,391,934.49x = 54,351,295.79 × 23,091,261.21 - Step 4: Simplify right side
39,391,934.49x = 1,255,039,968,073,407 - Step 5: Solve for x
x = 1,255,039,968,073,407/39,391,934.49 - Step 6: Final answer
x = 31,860,328.37
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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.