Finding the Fourth Proportional to 3,991,956.08, 5,507,161.25 and 2,443,286.70
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Solution
The fourth proportional to 3,991,956.08, 5,507,161.25 and 2,443,286.70 is: 3,370,671.81
Step by Step Solution
- Step 1: Write the proportion equation
3,991,956.08 : 5,507,161.25 = 2,443,286.70 : x - Step 2: Convert to fraction form
3,991,956.08/5,507,161.25 = 2,443,286.70/x - Step 3: Cross multiply
3,991,956.08x = 5,507,161.25 × 2,443,286.70 - Step 4: Simplify right side
3,991,956.08x = 13,455,573,824,663.94 - Step 5: Solve for x
x = 13,455,573,824,663.94/3,991,956.08 - Step 6: Final answer
x = 3,370,671.81
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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.