Finding the Fourth Proportional to 9,212,917.80, 13,819,376.70 and 2,481,331.80
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Solution
The fourth proportional to 9,212,917.80, 13,819,376.70 and 2,481,331.80 is: 3,721,997.70
Step by Step Solution
- Step 1: Write the proportion equation
9,212,917.80 : 13,819,376.70 = 2,481,331.80 : x - Step 2: Convert to fraction form
9,212,917.80/13,819,376.70 = 2,481,331.80/x - Step 3: Cross multiply
9,212,917.80x = 13,819,376.70 × 2,481,331.80 - Step 4: Simplify right side
9,212,917.80x = 34,290,458,861,889.05 - Step 5: Solve for x
x = 34,290,458,861,889.05/9,212,917.80 - Step 6: Final answer
x = 3,721,997.70
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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.