Finding the Fourth Proportional to 8,990,751,324.40, 13,486,126,986.60 and 8,853,001,817.20
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Solution
The fourth proportional to 8,990,751,324.40, 13,486,126,986.60 and 8,853,001,817.20 is: 13,279,502,725.80
Step by Step Solution
- Step 1: Write the proportion equation
8,990,751,324.40 : 13,486,126,986.60 = 8,853,001,817.20 : x - Step 2: Convert to fraction form
8,990,751,324.40/13,486,126,986.60 = 8,853,001,817.20/x - Step 3: Cross multiply
8,990,751,324.40x = 13,486,126,986.60 × 8,853,001,817.20 - Step 4: Simplify right side
8,990,751,324.40x = 119,392,706,719,359,778,816 - Step 5: Solve for x
x = 119,392,706,719,359,778,816/8,990,751,324.40 - Step 6: Final answer
x = 13,279,502,725.80
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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.