Finding the Fourth Proportional to 6,879,905.31, 9,494,275.40 and 3,782,481.36
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Solution
The fourth proportional to 6,879,905.31, 9,494,275.40 and 3,782,481.36 is: 5,219,827.62
Step by Step Solution
- Step 1: Write the proportion equation
6,879,905.31 : 9,494,275.40 = 3,782,481.36 : x - Step 2: Convert to fraction form
6,879,905.31/9,494,275.40 = 3,782,481.36/x - Step 3: Cross multiply
6,879,905.31x = 9,494,275.40 × 3,782,481.36 - Step 4: Simplify right side
6,879,905.31x = 35,911,919,722,478.44 - Step 5: Solve for x
x = 35,911,919,722,478.44/6,879,905.31 - Step 6: Final answer
x = 5,219,827.62
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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.