Finding the Fourth Proportional to 720,458,161.20, 994,338,883.08 and 456,164,722.44
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Solution
The fourth proportional to 720,458,161.20, 994,338,883.08 and 456,164,722.44 is: 629,574,824.80
Step by Step Solution
- Step 1: Write the proportion equation
720,458,161.20 : 994,338,883.08 = 456,164,722.44 : x - Step 2: Convert to fraction form
720,458,161.20/994,338,883.08 = 456,164,722.44/x - Step 3: Cross multiply
720,458,161.20x = 994,338,883.08 × 456,164,722.44 - Step 4: Simplify right side
720,458,161.20x = 453,582,320,611,487,808 - Step 5: Solve for x
x = 453,582,320,611,487,808/720,458,161.20 - Step 6: Final answer
x = 629,574,824.80
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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.