Finding the Fourth Proportional to 7,183,469.32, 9,913,419.57 and 4,085,913.09
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Solution
The fourth proportional to 7,183,469.32, 9,913,419.57 and 4,085,913.09 is: 5,638,691.97
Step by Step Solution
- Step 1: Write the proportion equation
7,183,469.32 : 9,913,419.57 = 4,085,913.09 : x - Step 2: Convert to fraction form
7,183,469.32/9,913,419.57 = 4,085,913.09/x - Step 3: Cross multiply
7,183,469.32x = 9,913,419.57 × 4,085,913.09 - Step 4: Simplify right side
7,183,469.32x = 40,505,370,787,725.17 - Step 5: Solve for x
x = 40,505,370,787,725.17/7,183,469.32 - Step 6: Final answer
x = 5,638,691.97
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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.