Finding the Fourth Proportional to 845,586,747.20, 1,268,380,120.80 and 738,091,323.20
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Solution
The fourth proportional to 845,586,747.20, 1,268,380,120.80 and 738,091,323.20 is: 1,107,136,984.80
Step by Step Solution
- Step 1: Write the proportion equation
845,586,747.20 : 1,268,380,120.80 = 738,091,323.20 : x - Step 2: Convert to fraction form
845,586,747.20/1,268,380,120.80 = 738,091,323.20/x - Step 3: Cross multiply
845,586,747.20x = 1,268,380,120.80 × 738,091,323.20 - Step 4: Simplify right side
845,586,747.20x = 936,180,361,681,847,808 - Step 5: Solve for x
x = 936,180,361,681,847,808/845,586,747.20 - Step 6: Final answer
x = 1,107,136,984.80
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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.