Finding the Fourth Proportional to 153,949,585.57, 212,448,736.75 and 83,383,440.19
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Solution
The fourth proportional to 153,949,585.57, 212,448,736.75 and 83,383,440.19 is: 115,068,231.39
Step by Step Solution
- Step 1: Write the proportion equation
153,949,585.57 : 212,448,736.75 = 83,383,440.19 : x - Step 2: Convert to fraction form
153,949,585.57/212,448,736.75 = 83,383,440.19/x - Step 3: Cross multiply
153,949,585.57x = 212,448,736.75 × 83,383,440.19 - Step 4: Simplify right side
153,949,585.57x = 17,714,706,534,957,806 - Step 5: Solve for x
x = 17,714,706,534,957,806/153,949,585.57 - Step 6: Final answer
x = 115,068,231.39
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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.