Finding the Fourth Proportional to 220,424,644.87, 304,185,921.72 and 121,305,391.99
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Solution
The fourth proportional to 220,424,644.87, 304,185,921.72 and 121,305,391.99 is: 167,401,392.40
Step by Step Solution
- Step 1: Write the proportion equation
220,424,644.87 : 304,185,921.72 = 121,305,391.99 : x - Step 2: Convert to fraction form
220,424,644.87/304,185,921.72 = 121,305,391.99/x - Step 3: Cross multiply
220,424,644.87x = 304,185,921.72 × 121,305,391.99 - Step 4: Simplify right side
220,424,644.87x = 36,899,392,470,868,696 - Step 5: Solve for x
x = 36,899,392,470,868,696/220,424,644.87 - Step 6: Final answer
x = 167,401,392.40
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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.