Finding the Fourth Proportional to 3,129,883.94, 4,319,621.26 and 1,840,662.02
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Solution
The fourth proportional to 3,129,883.94, 4,319,621.26 and 1,840,662.02 is: 2,540,337.90
Step by Step Solution
- Step 1: Write the proportion equation
3,129,883.94 : 4,319,621.26 = 1,840,662.02 : x - Step 2: Convert to fraction form
3,129,883.94/4,319,621.26 = 1,840,662.02/x - Step 3: Cross multiply
3,129,883.94x = 4,319,621.26 × 1,840,662.02 - Step 4: Simplify right side
3,129,883.94x = 7,950,962,794,066.55 - Step 5: Solve for x
x = 7,950,962,794,066.55/3,129,883.94 - Step 6: Final answer
x = 2,540,337.90
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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.