Finding the Fourth Proportional to 212,579,683.40, 318,869,525.10 and 161,183,433.80
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Solution
The fourth proportional to 212,579,683.40, 318,869,525.10 and 161,183,433.80 is: 241,775,150.70
Step by Step Solution
- Step 1: Write the proportion equation
212,579,683.40 : 318,869,525.10 = 161,183,433.80 : x - Step 2: Convert to fraction form
212,579,683.40/318,869,525.10 = 161,183,433.80/x - Step 3: Cross multiply
212,579,683.40x = 318,869,525.10 × 161,183,433.80 - Step 4: Simplify right side
212,579,683.40x = 51,396,484,989,793,296 - Step 5: Solve for x
x = 51,396,484,989,793,296/212,579,683.40 - Step 6: Final answer
x = 241,775,150.70
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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.