Finding the Fourth Proportional to 5,640,201.87, 7,782,657.44 and 3,225,287.31
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Solution
The fourth proportional to 5,640,201.87, 7,782,657.44 and 3,225,287.31 is: 4,450,426.92
Step by Step Solution
- Step 1: Write the proportion equation
5,640,201.87 : 7,782,657.44 = 3,225,287.31 : x - Step 2: Convert to fraction form
5,640,201.87/7,782,657.44 = 3,225,287.31/x - Step 3: Cross multiply
5,640,201.87x = 7,782,657.44 × 3,225,287.31 - Step 4: Simplify right side
5,640,201.87x = 25,101,306,263,182.65 - Step 5: Solve for x
x = 25,101,306,263,182.65/5,640,201.87 - Step 6: Final answer
x = 4,450,426.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.