Finding the Fourth Proportional to 3,143,490.12, 4,336,126.02 and 1,919,236.68
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Solution
The fourth proportional to 3,143,490.12, 4,336,126.02 and 1,919,236.68 is: 2,647,392.48
Step by Step Solution
- Step 1: Write the proportion equation
3,143,490.12 : 4,336,126.02 = 1,919,236.68 : x - Step 2: Convert to fraction form
3,143,490.12/4,336,126.02 = 1,919,236.68/x - Step 3: Cross multiply
3,143,490.12x = 4,336,126.02 × 1,919,236.68 - Step 4: Simplify right side
3,143,490.12x = 8,322,052,106,686.41 - Step 5: Solve for x
x = 8,322,052,106,686.41/3,143,490.12 - Step 6: Final answer
x = 2,647,392.48
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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.