Finding the Fourth Proportional to 3,131,387.99, 4,321,242.08 and 1,842,311.26
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Solution
The fourth proportional to 3,131,387.99, 4,321,242.08 and 1,842,311.26 is: 2,542,346.38
Step by Step Solution
- Step 1: Write the proportion equation
3,131,387.99 : 4,321,242.08 = 1,842,311.26 : x - Step 2: Convert to fraction form
3,131,387.99/4,321,242.08 = 1,842,311.26/x - Step 3: Cross multiply
3,131,387.99x = 4,321,242.08 × 1,842,311.26 - Step 4: Simplify right side
3,131,387.99x = 7,961,072,919,563.61 - Step 5: Solve for x
x = 7,961,072,919,563.61/3,131,387.99 - Step 6: Final answer
x = 2,542,346.38
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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.