Finding the Fourth Proportional to 2,081,912.20, 3,118,202.70 and 1,708,664.20
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Solution
The fourth proportional to 2,081,912.20, 3,118,202.70 and 1,708,664.20 is: 2,559,167.15
Step by Step Solution
- Step 1: Write the proportion equation
2,081,912.20 : 3,118,202.70 = 1,708,664.20 : x - Step 2: Convert to fraction form
2,081,912.20/3,118,202.70 = 1,708,664.20/x - Step 3: Cross multiply
2,081,912.20x = 3,118,202.70 × 1,708,664.20 - Step 4: Simplify right side
2,081,912.20x = 5,327,961,321,833.34 - Step 5: Solve for x
x = 5,327,961,321,833.34/2,081,912.20 - Step 6: Final answer
x = 2,559,167.15
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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.