Finding the Fourth Proportional to 1,868,276,690.40, 2,802,415,035.60 and 1,180,305,976.80
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Solution
The fourth proportional to 1,868,276,690.40, 2,802,415,035.60 and 1,180,305,976.80 is: 1,770,458,965.20
Step by Step Solution
- Step 1: Write the proportion equation
1,868,276,690.40 : 2,802,415,035.60 = 1,180,305,976.80 : x - Step 2: Convert to fraction form
1,868,276,690.40/2,802,415,035.60 = 1,180,305,976.80/x - Step 3: Cross multiply
1,868,276,690.40x = 2,802,415,035.60 × 1,180,305,976.80 - Step 4: Simplify right side
1,868,276,690.40x = 3,307,707,215,992,864,768 - Step 5: Solve for x
x = 3,307,707,215,992,864,768/1,868,276,690.40 - Step 6: Final answer
x = 1,770,458,965.20
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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.