Finding the Fourth Proportional to 1,689,251,805.99, 2,331,305,540.96 and 936,800,634.15
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Solution
The fourth proportional to 1,689,251,805.99, 2,331,305,540.96 and 936,800,634.15 is: 1,292,861,432.16
Step by Step Solution
- Step 1: Write the proportion equation
1,689,251,805.99 : 2,331,305,540.96 = 936,800,634.15 : x - Step 2: Convert to fraction form
1,689,251,805.99/2,331,305,540.96 = 936,800,634.15/x - Step 3: Cross multiply
1,689,251,805.99x = 2,331,305,540.96 × 936,800,634.15 - Step 4: Simplify right side
1,689,251,805.99x = 2,183,968,509,164,052,736 - Step 5: Solve for x
x = 2,183,968,509,164,052,736/1,689,251,805.99 - Step 6: Final answer
x = 1,292,861,432.16
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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.