Finding the Fourth Proportional to 6,385,804.20, 9,585,704.70 and 3,992,351.40
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Solution
The fourth proportional to 6,385,804.20, 9,585,704.70 and 3,992,351.40 is: 5,992,902.44
Step by Step Solution
- Step 1: Write the proportion equation
6,385,804.20 : 9,585,704.70 = 3,992,351.40 : x - Step 2: Convert to fraction form
6,385,804.20/9,585,704.70 = 3,992,351.40/x - Step 3: Cross multiply
6,385,804.20x = 9,585,704.70 × 3,992,351.40 - Step 4: Simplify right side
6,385,804.20x = 38,269,501,579,031.58 - Step 5: Solve for x
x = 38,269,501,579,031.58/6,385,804.20 - Step 6: Final answer
x = 5,992,902.44
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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.