Finding the Fourth Proportional to 10,043,862.68, 13,859,941.92 and 5,460,143.96
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Solution
The fourth proportional to 10,043,862.68, 13,859,941.92 and 5,460,143.96 is: 7,534,678.70
Step by Step Solution
- Step 1: Write the proportion equation
10,043,862.68 : 13,859,941.92 = 5,460,143.96 : x - Step 2: Convert to fraction form
10,043,862.68/13,859,941.92 = 5,460,143.96/x - Step 3: Cross multiply
10,043,862.68x = 13,859,941.92 × 5,460,143.96 - Step 4: Simplify right side
10,043,862.68x = 75,677,278,160,438.80 - Step 5: Solve for x
x = 75,677,278,160,438.80/10,043,862.68 - Step 6: Final answer
x = 7,534,678.70
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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.