Finding the Fourth Proportional to 724,135,902.20, 1,086,203,853.30 and 264,089,079.80
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Solution
The fourth proportional to 724,135,902.20, 1,086,203,853.30 and 264,089,079.80 is: 396,133,619.70
Step by Step Solution
- Step 1: Write the proportion equation
724,135,902.20 : 1,086,203,853.30 = 264,089,079.80 : x - Step 2: Convert to fraction form
724,135,902.20/1,086,203,853.30 = 264,089,079.80/x - Step 3: Cross multiply
724,135,902.20x = 1,086,203,853.30 × 264,089,079.80 - Step 4: Simplify right side
724,135,902.20x = 286,854,576,093,211,200 - Step 5: Solve for x
x = 286,854,576,093,211,200/724,135,902.20 - Step 6: Final answer
x = 396,133,619.70
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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.