Finding the Fourth Proportional to 221,997,581.67, 306,350,011.94 and 122,882,391.75
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Solution
The fourth proportional to 221,997,581.67, 306,350,011.94 and 122,882,391.75 is: 169,574,019.21
Step by Step Solution
- Step 1: Write the proportion equation
221,997,581.67 : 306,350,011.94 = 122,882,391.75 : x - Step 2: Convert to fraction form
221,997,581.67/306,350,011.94 = 122,882,391.75/x - Step 3: Cross multiply
221,997,581.67x = 306,350,011.94 × 122,882,391.75 - Step 4: Simplify right side
221,997,581.67x = 37,645,022,179,213,848 - Step 5: Solve for x
x = 37,645,022,179,213,848/221,997,581.67 - Step 6: Final answer
x = 169,574,019.21
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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.