Finding the Fourth Proportional to 198,720,742.20, 298,081,113.30 and 62,419,903.80
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Solution
The fourth proportional to 198,720,742.20, 298,081,113.30 and 62,419,903.80 is: 93,629,855.70
Step by Step Solution
- Step 1: Write the proportion equation
198,720,742.20 : 298,081,113.30 = 62,419,903.80 : x - Step 2: Convert to fraction form
198,720,742.20/298,081,113.30 = 62,419,903.80/x - Step 3: Cross multiply
198,720,742.20x = 298,081,113.30 × 62,419,903.80 - Step 4: Simplify right side
198,720,742.20x = 18,606,194,416,782,900 - Step 5: Solve for x
x = 18,606,194,416,782,900/198,720,742.20 - Step 6: Final answer
x = 93,629,855.70
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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.