Finding the Fourth Proportional to 220,062,235.20, 330,093,352.80 and 143,534,731.20
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Solution
The fourth proportional to 220,062,235.20, 330,093,352.80 and 143,534,731.20 is: 215,302,096.80
Step by Step Solution
- Step 1: Write the proportion equation
220,062,235.20 : 330,093,352.80 = 143,534,731.20 : x - Step 2: Convert to fraction form
220,062,235.20/330,093,352.80 = 143,534,731.20/x - Step 3: Cross multiply
220,062,235.20x = 330,093,352.80 × 143,534,731.20 - Step 4: Simplify right side
220,062,235.20x = 47,379,860,665,054,768 - Step 5: Solve for x
x = 47,379,860,665,054,768/220,062,235.20 - Step 6: Final answer
x = 215,302,096.80
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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.