Finding the Fourth Proportional to 7,278,338,808.80, 10,917,508,213.20 and 2,371,508,626.40
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Solution
The fourth proportional to 7,278,338,808.80, 10,917,508,213.20 and 2,371,508,626.40 is: 3,557,262,939.60
Step by Step Solution
- Step 1: Write the proportion equation
7,278,338,808.80 : 10,917,508,213.20 = 2,371,508,626.40 : x - Step 2: Convert to fraction form
7,278,338,808.80/10,917,508,213.20 = 2,371,508,626.40/x - Step 3: Cross multiply
7,278,338,808.80x = 10,917,508,213.20 × 2,371,508,626.40 - Step 4: Simplify right side
7,278,338,808.80x = 25,890,964,906,396,651,520 - Step 5: Solve for x
x = 25,890,964,906,396,651,520/7,278,338,808.80 - Step 6: Final answer
x = 3,557,262,939.60
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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.