Finding the Fourth Proportional to 3,100,313.20, 4,278,671.55 and 1,859,969.99
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Solution
The fourth proportional to 3,100,313.20, 4,278,671.55 and 1,859,969.99 is: 2,566,902.17
Step by Step Solution
- Step 1: Write the proportion equation
3,100,313.20 : 4,278,671.55 = 1,859,969.99 : x - Step 2: Convert to fraction form
3,100,313.20/4,278,671.55 = 1,859,969.99/x - Step 3: Cross multiply
3,100,313.20x = 4,278,671.55 × 1,859,969.99 - Step 4: Simplify right side
3,100,313.20x = 7,958,200,670,032.26 - Step 5: Solve for x
x = 7,958,200,670,032.26/3,100,313.20 - Step 6: Final answer
x = 2,566,902.17
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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.