Finding the Fourth Proportional to 272,621,770.97, 378,757,905.82 and 269,352,910.40
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Solution
The fourth proportional to 272,621,770.97, 378,757,905.82 and 269,352,910.40 is: 374,216,424.11
Step by Step Solution
- Step 1: Write the proportion equation
272,621,770.97 : 378,757,905.82 = 269,352,910.40 : x - Step 2: Convert to fraction form
272,621,770.97/378,757,905.82 = 269,352,910.40/x - Step 3: Cross multiply
272,621,770.97x = 378,757,905.82 × 269,352,910.40 - Step 4: Simplify right side
272,621,770.97x = 102,019,544,268,279,328 - Step 5: Solve for x
x = 102,019,544,268,279,328/272,621,770.97 - Step 6: Final answer
x = 374,216,424.11
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.