Finding the Fourth Proportional to 220,361,992,865.20, 330,053,213,272.20 and 190,975,431,329.20
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Solution
The fourth proportional to 220,361,992,865.20, 330,053,213,272.20 and 190,975,431,329.20 is: 286,038,685,467.89
Step by Step Solution
- Step 1: Write the proportion equation
220,361,992,865.20 : 330,053,213,272.20 = 190,975,431,329.20 : x - Step 2: Convert to fraction form
220,361,992,865.20/330,053,213,272.20 = 190,975,431,329.20/x - Step 3: Cross multiply
220,361,992,865.20x = 330,053,213,272.20 × 190,975,431,329.20 - Step 4: Simplify right side
220,361,992,865.20x = 63,032,054,766,246,840,762,368 - Step 5: Solve for x
x = 63,032,054,766,246,840,762,368/220,361,992,865.20 - Step 6: Final answer
x = 286,038,685,467.89
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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.