Finding the Fourth Proportional to 1,461,470,560.40, 2,192,205,840.60 and 686,629,582.40
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Solution
The fourth proportional to 1,461,470,560.40, 2,192,205,840.60 and 686,629,582.40 is: 1,029,944,373.60
Step by Step Solution
- Step 1: Write the proportion equation
1,461,470,560.40 : 2,192,205,840.60 = 686,629,582.40 : x - Step 2: Convert to fraction form
1,461,470,560.40/2,192,205,840.60 = 686,629,582.40/x - Step 3: Cross multiply
1,461,470,560.40x = 2,192,205,840.60 × 686,629,582.40 - Step 4: Simplify right side
1,461,470,560.40x = 1,505,233,380,866,018,816 - Step 5: Solve for x
x = 1,505,233,380,866,018,816/1,461,470,560.40 - Step 6: Final answer
x = 1,029,944,373.60
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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.