Finding the Fourth Proportional to 30,275,793.92, 41,789,863.68 and 18,676,974.08
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Solution
The fourth proportional to 30,275,793.92, 41,789,863.68 and 18,676,974.08 is: 25,779,941.65
Step by Step Solution
- Step 1: Write the proportion equation
30,275,793.92 : 41,789,863.68 = 18,676,974.08 : x - Step 2: Convert to fraction form
30,275,793.92/41,789,863.68 = 18,676,974.08/x - Step 3: Cross multiply
30,275,793.92x = 41,789,863.68 × 18,676,974.08 - Step 4: Simplify right side
30,275,793.92x = 780,508,200,758,093.38 - Step 5: Solve for x
x = 780,508,200,758,093.38/30,275,793.92 - Step 6: Final answer
x = 25,779,941.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.