Finding the Fourth Proportional to 198,593,877.20, 297,890,815.80 and 96,557,205.20
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Solution
The fourth proportional to 198,593,877.20, 297,890,815.80 and 96,557,205.20 is: 144,835,807.80
Step by Step Solution
- Step 1: Write the proportion equation
198,593,877.20 : 297,890,815.80 = 96,557,205.20 : x - Step 2: Convert to fraction form
198,593,877.20/297,890,815.80 = 96,557,205.20/x - Step 3: Cross multiply
198,593,877.20x = 297,890,815.80 × 96,557,205.20 - Step 4: Simplify right side
198,593,877.20x = 28,763,504,628,396,004 - Step 5: Solve for x
x = 28,763,504,628,396,004/198,593,877.20 - Step 6: Final answer
x = 144,835,807.80
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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.