Finding the Fourth Proportional to 3,466,340,698.19, 4,783,550,163.99 and 1,981,260,710.15
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Solution
The fourth proportional to 3,466,340,698.19, 4,783,550,163.99 and 1,981,260,710.15 is: 2,734,139,780.29
Step by Step Solution
- Step 1: Write the proportion equation
3,466,340,698.19 : 4,783,550,163.99 = 1,981,260,710.15 : x - Step 2: Convert to fraction form
3,466,340,698.19/4,783,550,163.99 = 1,981,260,710.15/x - Step 3: Cross multiply
3,466,340,698.19x = 4,783,550,163.99 × 1,981,260,710.15 - Step 4: Simplify right side
3,466,340,698.19x = 9,477,459,994,944,976,896 - Step 5: Solve for x
x = 9,477,459,994,944,976,896/3,466,340,698.19 - Step 6: Final answer
x = 2,734,139,780.29
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Double scale
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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.