Finding the Fourth Proportional to 802,224,014.40, 1,203,336,021.60 and 691,259,133.60
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Solution
The fourth proportional to 802,224,014.40, 1,203,336,021.60 and 691,259,133.60 is: 1,036,888,700.40
Step by Step Solution
- Step 1: Write the proportion equation
802,224,014.40 : 1,203,336,021.60 = 691,259,133.60 : x - Step 2: Convert to fraction form
802,224,014.40/1,203,336,021.60 = 691,259,133.60/x - Step 3: Cross multiply
802,224,014.40x = 1,203,336,021.60 × 691,259,133.60 - Step 4: Simplify right side
802,224,014.40x = 831,817,015,720,886,912 - Step 5: Solve for x
x = 831,817,015,720,886,912/802,224,014.40 - Step 6: Final answer
x = 1,036,888,700.40
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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.