Finding the Fourth Proportional to 198,685,366.20, 298,368,119.70 and 107,986,102.20
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Solution
The fourth proportional to 198,685,366.20, 298,368,119.70 and 107,986,102.20 is: 162,163,982.60
Step by Step Solution
- Step 1: Write the proportion equation
198,685,366.20 : 298,368,119.70 = 107,986,102.20 : x - Step 2: Convert to fraction form
198,685,366.20/298,368,119.70 = 107,986,102.20/x - Step 3: Cross multiply
198,685,366.20x = 298,368,119.70 × 107,986,102.20 - Step 4: Simplify right side
198,685,366.20x = 32,219,610,267,146,032 - Step 5: Solve for x
x = 32,219,610,267,146,032/198,685,366.20 - Step 6: Final answer
x = 162,163,982.60
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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.