Finding the Fourth Proportional to 54,198,245.40, 81,297,368.10 and 49,831,243.80
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Solution
The fourth proportional to 54,198,245.40, 81,297,368.10 and 49,831,243.80 is: 74,746,865.70
Step by Step Solution
- Step 1: Write the proportion equation
54,198,245.40 : 81,297,368.10 = 49,831,243.80 : x - Step 2: Convert to fraction form
54,198,245.40/81,297,368.10 = 49,831,243.80/x - Step 3: Cross multiply
54,198,245.40x = 81,297,368.10 × 49,831,243.80 - Step 4: Simplify right side
54,198,245.40x = 4,051,148,970,089,442 - Step 5: Solve for x
x = 4,051,148,970,089,442/54,198,245.40 - Step 6: Final answer
x = 74,746,865.70
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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.