Finding the Fourth Proportional to 613,291,268.05, 919,936,902.08 and 285,657,891.55
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Solution
The fourth proportional to 613,291,268.05, 919,936,902.08 and 285,657,891.55 is: 428,486,837.33
Step by Step Solution
- Step 1: Write the proportion equation
613,291,268.05 : 919,936,902.08 = 285,657,891.55 : x - Step 2: Convert to fraction form
613,291,268.05/919,936,902.08 = 285,657,891.55/x - Step 3: Cross multiply
613,291,268.05x = 919,936,902.08 × 285,657,891.55 - Step 4: Simplify right side
613,291,268.05x = 262,787,235,807,211,648 - Step 5: Solve for x
x = 262,787,235,807,211,648/613,291,268.05 - Step 6: Final answer
x = 428,486,837.33
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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.