Finding the Fourth Proportional to 5,218,946.50, 7,202,143.92 and 3,043,069.42
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Solution
The fourth proportional to 5,218,946.50, 7,202,143.92 and 3,043,069.42 is: 4,199,434.49
Step by Step Solution
- Step 1: Write the proportion equation
5,218,946.50 : 7,202,143.92 = 3,043,069.42 : x - Step 2: Convert to fraction form
5,218,946.50/7,202,143.92 = 3,043,069.42/x - Step 3: Cross multiply
5,218,946.50x = 7,202,143.92 × 3,043,069.42 - Step 4: Simplify right side
5,218,946.50x = 21,916,623,921,390.93 - Step 5: Solve for x
x = 21,916,623,921,390.93/5,218,946.50 - Step 6: Final answer
x = 4,199,434.49
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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.