Finding the Fourth Proportional to 6,909,838.70, 10,366,274.37 and 2,117,888.42
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Solution
The fourth proportional to 6,909,838.70, 10,366,274.37 and 2,117,888.42 is: 3,177,297.39
Step by Step Solution
- Step 1: Write the proportion equation
6,909,838.70 : 10,366,274.37 = 2,117,888.42 : x - Step 2: Convert to fraction form
6,909,838.70/10,366,274.37 = 2,117,888.42/x - Step 3: Cross multiply
6,909,838.70x = 10,366,274.37 × 2,117,888.42 - Step 4: Simplify right side
6,909,838.70x = 21,954,612,446,765.79 - Step 5: Solve for x
x = 21,954,612,446,765.79/6,909,838.70 - Step 6: Final answer
x = 3,177,297.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.