Finding the Fourth Proportional to 585,449,989.75, 878,193,180.47 and 217,076,608.63
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Solution
The fourth proportional to 585,449,989.75, 878,193,180.47 and 217,076,608.63 is: 325,621,659.71
Step by Step Solution
- Step 1: Write the proportion equation
585,449,989.75 : 878,193,180.47 = 217,076,608.63 : x - Step 2: Convert to fraction form
585,449,989.75/878,193,180.47 = 217,076,608.63/x - Step 3: Cross multiply
585,449,989.75x = 878,193,180.47 × 217,076,608.63 - Step 4: Simplify right side
585,449,989.75x = 190,635,197,338,421,152 - Step 5: Solve for x
x = 190,635,197,338,421,152/585,449,989.75 - Step 6: Final answer
x = 325,621,659.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.