Finding the Fourth Proportional to 3,131,839.13, 4,321,864.49 and 1,842,763.01
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Solution
The fourth proportional to 3,131,839.13, 4,321,864.49 and 1,842,763.01 is: 2,542,969.70
Step by Step Solution
- Step 1: Write the proportion equation
3,131,839.13 : 4,321,864.49 = 1,842,763.01 : x - Step 2: Convert to fraction form
3,131,839.13/4,321,864.49 = 1,842,763.01/x - Step 3: Cross multiply
3,131,839.13x = 4,321,864.49 × 1,842,763.01 - Step 4: Simplify right side
3,131,839.13x = 7,964,171,985,581.38 - Step 5: Solve for x
x = 7,964,171,985,581.38/3,131,839.13 - Step 6: Final answer
x = 2,542,969.70
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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.