Finding the Fourth Proportional to 146,239,815.96, 201,693,272.67 and 128,560,918.41
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Solution
The fourth proportional to 146,239,815.96, 201,693,272.67 and 128,560,918.41 is: 177,310,619.56
Step by Step Solution
- Step 1: Write the proportion equation
146,239,815.96 : 201,693,272.67 = 128,560,918.41 : x - Step 2: Convert to fraction form
146,239,815.96/201,693,272.67 = 128,560,918.41/x - Step 3: Cross multiply
146,239,815.96x = 201,693,272.67 × 128,560,918.41 - Step 4: Simplify right side
146,239,815.96x = 25,929,872,371,573,752 - Step 5: Solve for x
x = 25,929,872,371,573,752/146,239,815.96 - Step 6: Final answer
x = 177,310,619.56
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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.