Finding the Fourth Proportional to 618,727,626.74, 853,824,578.37 and 340,268,289.14
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Solution
The fourth proportional to 618,727,626.74, 853,824,578.37 and 340,268,289.14 is: 469,559,489.43
Step by Step Solution
- Step 1: Write the proportion equation
618,727,626.74 : 853,824,578.37 = 340,268,289.14 : x - Step 2: Convert to fraction form
618,727,626.74/853,824,578.37 = 340,268,289.14/x - Step 3: Cross multiply
618,727,626.74x = 853,824,578.37 × 340,268,289.14 - Step 4: Simplify right side
618,727,626.74x = 290,529,428,507,641,728 - Step 5: Solve for x
x = 290,529,428,507,641,728/618,727,626.74 - Step 6: Final answer
x = 469,559,489.43
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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.