Finding the Fourth Proportional to 220,361,992,872.20, 330,053,213,282.70 and 190,975,431,336.20
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Solution
The fourth proportional to 220,361,992,872.20, 330,053,213,282.70 and 190,975,431,336.20 is: 286,038,685,478.39
Step by Step Solution
- Step 1: Write the proportion equation
220,361,992,872.20 : 330,053,213,282.70 = 190,975,431,336.20 : x - Step 2: Convert to fraction form
220,361,992,872.20/330,053,213,282.70 = 190,975,431,336.20/x - Step 3: Cross multiply
220,361,992,872.20x = 330,053,213,282.70 × 190,975,431,336.20 - Step 4: Simplify right side
220,361,992,872.20x = 63,032,054,770,562,452,422,656 - Step 5: Solve for x
x = 63,032,054,770,562,452,422,656/220,361,992,872.20 - Step 6: Final answer
x = 286,038,685,478.39
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1.5x scale
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.