Finding the Fourth Proportional to 2,157,941.80, 3,236,912.70 and 1,318,133.80
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Solution
The fourth proportional to 2,157,941.80, 3,236,912.70 and 1,318,133.80 is: 1,977,200.70
Step by Step Solution
- Step 1: Write the proportion equation
2,157,941.80 : 3,236,912.70 = 1,318,133.80 : x - Step 2: Convert to fraction form
2,157,941.80/3,236,912.70 = 1,318,133.80/x - Step 3: Cross multiply
2,157,941.80x = 3,236,912.70 × 1,318,133.80 - Step 4: Simplify right side
2,157,941.80x = 4,266,684,037,519.26 - Step 5: Solve for x
x = 4,266,684,037,519.26/2,157,941.80 - Step 6: Final answer
x = 1,977,200.70
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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.