Finding the Fourth Proportional to 232,624,993.98, 321,008,067.99 and 128,197,231.14
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Solution
The fourth proportional to 232,624,993.98, 321,008,067.99 and 128,197,231.14 is: 176,904,230.22
Step by Step Solution
- Step 1: Write the proportion equation
232,624,993.98 : 321,008,067.99 = 128,197,231.14 : x - Step 2: Convert to fraction form
232,624,993.98/321,008,067.99 = 128,197,231.14/x - Step 3: Cross multiply
232,624,993.98x = 321,008,067.99 × 128,197,231.14 - Step 4: Simplify right side
232,624,993.98x = 41,152,345,489,918,864 - Step 5: Solve for x
x = 41,152,345,489,918,864/232,624,993.98 - Step 6: Final answer
x = 176,904,230.22
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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.