Finding the Fourth Proportional to 146,239,949.07, 201,693,456.68 and 128,561,052.69
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Solution
The fourth proportional to 146,239,949.07, 201,693,456.68 and 128,561,052.69 is: 177,310,805.12
Step by Step Solution
- Step 1: Write the proportion equation
146,239,949.07 : 201,693,456.68 = 128,561,052.69 : x - Step 2: Convert to fraction form
146,239,949.07/201,693,456.68 = 128,561,052.69/x - Step 3: Cross multiply
146,239,949.07x = 201,693,456.68 × 128,561,052.69 - Step 4: Simplify right side
146,239,949.07x = 25,929,923,110,822,908 - Step 5: Solve for x
x = 25,929,923,110,822,908/146,239,949.07 - Step 6: Final answer
x = 177,310,805.12
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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.