Finding the Fourth Proportional to 6,970,837.65, 9,618,183.70 and 4,217,456.62
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Solution
The fourth proportional to 6,970,837.65, 9,618,183.70 and 4,217,456.62 is: 5,819,138.90
Step by Step Solution
- Step 1: Write the proportion equation
6,970,837.65 : 9,618,183.70 = 4,217,456.62 : x - Step 2: Convert to fraction form
6,970,837.65/9,618,183.70 = 4,217,456.62/x - Step 3: Cross multiply
6,970,837.65x = 9,618,183.70 × 4,217,456.62 - Step 4: Simplify right side
6,970,837.65x = 40,564,272,517,941.09 - Step 5: Solve for x
x = 40,564,272,517,941.09/6,970,837.65 - Step 6: Final answer
x = 5,819,138.90
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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.