Finding the Fourth Proportional to 19,170,152.10, 28,776,223.35 and 11,989,793.70
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Solution
The fourth proportional to 19,170,152.10, 28,776,223.35 and 11,989,793.70 is: 17,997,821.80
Step by Step Solution
- Step 1: Write the proportion equation
19,170,152.10 : 28,776,223.35 = 11,989,793.70 : x - Step 2: Convert to fraction form
19,170,152.10/28,776,223.35 = 11,989,793.70/x - Step 3: Cross multiply
19,170,152.10x = 28,776,223.35 × 11,989,793.70 - Step 4: Simplify right side
19,170,152.10x = 345,020,981,431,622.88 - Step 5: Solve for x
x = 345,020,981,431,622.88/19,170,152.10 - Step 6: Final answer
x = 17,997,821.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.