Finding the Fourth Proportional to 5,385,423.64, 7,431,908.72 and 2,938,027.26
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Solution
The fourth proportional to 5,385,423.64, 7,431,908.72 and 2,938,027.26 is: 4,054,490.76
Step by Step Solution
- Step 1: Write the proportion equation
5,385,423.64 : 7,431,908.72 = 2,938,027.26 : x - Step 2: Convert to fraction form
5,385,423.64/7,431,908.72 = 2,938,027.26/x - Step 3: Cross multiply
5,385,423.64x = 7,431,908.72 × 2,938,027.26 - Step 4: Simplify right side
5,385,423.64x = 21,835,150,413,191.70 - Step 5: Solve for x
x = 21,835,150,413,191.70/5,385,423.64 - Step 6: Final answer
x = 4,054,490.76
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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.