Finding the Fourth Proportional to 8,205,008,568.40, 12,307,512,852.60 and 2,389,107,998.80
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Solution
The fourth proportional to 8,205,008,568.40, 12,307,512,852.60 and 2,389,107,998.80 is: 3,583,661,998.20
Step by Step Solution
- Step 1: Write the proportion equation
8,205,008,568.40 : 12,307,512,852.60 = 2,389,107,998.80 : x - Step 2: Convert to fraction form
8,205,008,568.40/12,307,512,852.60 = 2,389,107,998.80/x - Step 3: Cross multiply
8,205,008,568.40x = 12,307,512,852.60 × 2,389,107,998.80 - Step 4: Simplify right side
8,205,008,568.40x = 29,403,977,401,480,470,528 - Step 5: Solve for x
x = 29,403,977,401,480,470,528/8,205,008,568.40 - Step 6: Final answer
x = 3,583,661,998.20
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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.