Finding the Fourth Proportional to 220,361,992,857.20, 330,053,213,260.20 and 190,975,431,321.20
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Solution
The fourth proportional to 220,361,992,857.20, 330,053,213,260.20 and 190,975,431,321.20 is: 286,038,685,455.90
Step by Step Solution
- Step 1: Write the proportion equation
220,361,992,857.20 : 330,053,213,260.20 = 190,975,431,321.20 : x - Step 2: Convert to fraction form
220,361,992,857.20/330,053,213,260.20 = 190,975,431,321.20/x - Step 3: Cross multiply
220,361,992,857.20x = 330,053,213,260.20 × 190,975,431,321.20 - Step 4: Simplify right side
220,361,992,857.20x = 63,032,054,761,314,708,357,120 - Step 5: Solve for x
x = 63,032,054,761,314,708,357,120/220,361,992,857.20 - Step 6: Final answer
x = 286,038,685,455.90
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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.