Finding the Fourth Proportional to 151,640,994,029.63, 209,271,149,837.92 and 83,975,584,247.65
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Solution
The fourth proportional to 151,640,994,029.63, 209,271,149,837.92 and 83,975,584,247.65 is: 115,889,949,062.07
Step by Step Solution
- Step 1: Write the proportion equation
151,640,994,029.63 : 209,271,149,837.92 = 83,975,584,247.65 : x - Step 2: Convert to fraction form
151,640,994,029.63/209,271,149,837.92 = 83,975,584,247.65/x - Step 3: Cross multiply
151,640,994,029.63x = 209,271,149,837.92 × 83,975,584,247.65 - Step 4: Simplify right side
151,640,994,029.63x = 17,573,667,073,815,792,844,800 - Step 5: Solve for x
x = 17,573,667,073,815,792,844,800/151,640,994,029.63 - Step 6: Final answer
x = 115,889,949,062.07
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1.5x scale
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.