Finding the Fourth Proportional to 13,198,449,325.98, 18,214,205,268.49 and 7,177,306,883.39
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Solution
The fourth proportional to 13,198,449,325.98, 18,214,205,268.49 and 7,177,306,883.39 is: 9,904,871,217.84
Step by Step Solution
- Step 1: Write the proportion equation
13,198,449,325.98 : 18,214,205,268.49 = 7,177,306,883.39 : x - Step 2: Convert to fraction form
13,198,449,325.98/18,214,205,268.49 = 7,177,306,883.39/x - Step 3: Cross multiply
13,198,449,325.98x = 18,214,205,268.49 × 7,177,306,883.39 - Step 4: Simplify right side
13,198,449,325.98x = 130,728,940,849,011,703,808 - Step 5: Solve for x
x = 130,728,940,849,011,703,808/13,198,449,325.98 - Step 6: Final answer
x = 9,904,871,217.84
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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.