Finding the Fourth Proportional to 726,686,054.99, 1,089,976,356.04 and 283,945,485.75
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Solution
The fourth proportional to 726,686,054.99, 1,089,976,356.04 and 283,945,485.75 is: 425,897,626.28
Step by Step Solution
- Step 1: Write the proportion equation
726,686,054.99 : 1,089,976,356.04 = 283,945,485.75 : x - Step 2: Convert to fraction form
726,686,054.99/1,089,976,356.04 = 283,945,485.75/x - Step 3: Cross multiply
726,686,054.99x = 1,089,976,356.04 × 283,945,485.75 - Step 4: Simplify right side
726,686,054.99x = 309,493,865,871,792,704 - Step 5: Solve for x
x = 309,493,865,871,792,704/726,686,054.99 - Step 6: Final answer
x = 425,897,626.28
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Double scale
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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.