Finding the Fourth Proportional to 220,202,854.20, 330,293,783.67 and 74,622,137.40
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Solution
The fourth proportional to 220,202,854.20, 330,293,783.67 and 74,622,137.40 is: 111,929,648.67
Step by Step Solution
- Step 1: Write the proportion equation
220,202,854.20 : 330,293,783.67 = 74,622,137.40 : x - Step 2: Convert to fraction form
220,202,854.20/330,293,783.67 = 74,622,137.40/x - Step 3: Cross multiply
220,202,854.20x = 330,293,783.67 × 74,622,137.40 - Step 4: Simplify right side
220,202,854.20x = 24,647,228,107,388,620 - Step 5: Solve for x
x = 24,647,228,107,388,620/220,202,854.20 - Step 6: Final answer
x = 111,929,648.67
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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.