Finding the Fourth Proportional to 157,601,112.70, 236,202,603.45 and 76,647,768.70
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Solution
The fourth proportional to 157,601,112.70, 236,202,603.45 and 76,647,768.70 is: 114,874,839.43
Step by Step Solution
- Step 1: Write the proportion equation
157,601,112.70 : 236,202,603.45 = 76,647,768.70 : x - Step 2: Convert to fraction form
157,601,112.70/236,202,603.45 = 76,647,768.70/x - Step 3: Cross multiply
157,601,112.70x = 236,202,603.45 × 76,647,768.70 - Step 4: Simplify right side
157,601,112.70x = 18,104,402,515,573,420 - Step 5: Solve for x
x = 18,104,402,515,573,420/157,601,112.70 - Step 6: Final answer
x = 114,874,839.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.