Finding the Fourth Proportional to 235,372,205.16, 324,816,630.96 and 129,537,805.98
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Solution
The fourth proportional to 235,372,205.16, 324,816,630.96 and 129,537,805.98 is: 178,763,816.62
Step by Step Solution
- Step 1: Write the proportion equation
235,372,205.16 : 324,816,630.96 = 129,537,805.98 : x - Step 2: Convert to fraction form
235,372,205.16/324,816,630.96 = 129,537,805.98/x - Step 3: Cross multiply
235,372,205.16x = 324,816,630.96 × 129,537,805.98 - Step 4: Simplify right side
235,372,205.16x = 42,076,033,720,373,736 - Step 5: Solve for x
x = 42,076,033,720,373,736/235,372,205.16 - Step 6: Final answer
x = 178,763,816.62
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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.