Finding the Fourth Proportional to 313,351,223.49, 432,290,539.44 and 195,672,249.05
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Solution
The fourth proportional to 313,351,223.49, 432,290,539.44 and 195,672,249.05 is: 269,943,934.32
Step by Step Solution
- Step 1: Write the proportion equation
313,351,223.49 : 432,290,539.44 = 195,672,249.05 : x - Step 2: Convert to fraction form
313,351,223.49/432,290,539.44 = 195,672,249.05/x - Step 3: Cross multiply
313,351,223.49x = 432,290,539.44 × 195,672,249.05 - Step 4: Simplify right side
313,351,223.49x = 84,587,262,093,101,072 - Step 5: Solve for x
x = 84,587,262,093,101,072/313,351,223.49 - Step 6: Final answer
x = 269,943,934.32
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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.