Finding the Fourth Proportional to 6,719,163.98, 9,273,233.49 and 3,818,990.81
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Solution
The fourth proportional to 6,719,163.98, 9,273,233.49 and 3,818,990.81 is: 5,270,654.74
Step by Step Solution
- Step 1: Write the proportion equation
6,719,163.98 : 9,273,233.49 = 3,818,990.81 : x - Step 2: Convert to fraction form
6,719,163.98/9,273,233.49 = 3,818,990.81/x - Step 3: Cross multiply
6,719,163.98x = 9,273,233.49 × 3,818,990.81 - Step 4: Simplify right side
6,719,163.98x = 35,414,393,430,928.06 - Step 5: Solve for x
x = 35,414,393,430,928.06/6,719,163.98 - Step 6: Final answer
x = 5,270,654.74
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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.