Finding the Fourth Proportional to 129,489,191.20, 194,233,786.80 and 93,351,203.20
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Solution
The fourth proportional to 129,489,191.20, 194,233,786.80 and 93,351,203.20 is: 140,026,804.80
Step by Step Solution
- Step 1: Write the proportion equation
129,489,191.20 : 194,233,786.80 = 93,351,203.20 : x - Step 2: Convert to fraction form
129,489,191.20/194,233,786.80 = 93,351,203.20/x - Step 3: Cross multiply
129,489,191.20x = 194,233,786.80 × 93,351,203.20 - Step 4: Simplify right side
129,489,191.20x = 18,131,957,699,872,280 - Step 5: Solve for x
x = 18,131,957,699,872,280/129,489,191.20 - Step 6: Final answer
x = 140,026,804.80
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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.