Finding the Fourth Proportional to 220,198,418.70, 330,287,130.45 and 74,617,701.90
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Solution
The fourth proportional to 220,198,418.70, 330,287,130.45 and 74,617,701.90 is: 111,922,995.57
Step by Step Solution
- Step 1: Write the proportion equation
220,198,418.70 : 330,287,130.45 = 74,617,701.90 : x - Step 2: Convert to fraction form
220,198,418.70/330,287,130.45 = 74,617,701.90/x - Step 3: Cross multiply
220,198,418.70x = 330,287,130.45 × 74,617,701.90 - Step 4: Simplify right side
220,198,418.70x = 24,645,266,641,324,512 - Step 5: Solve for x
x = 24,645,266,641,324,512/220,198,418.70 - Step 6: Final answer
x = 111,922,995.57
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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.