Finding the Fourth Proportional to 265,235,220.80, 397,906,639.20 and 83,440,116.80
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Solution
The fourth proportional to 265,235,220.80, 397,906,639.20 and 83,440,116.80 is: 125,177,102.61
Step by Step Solution
- Step 1: Write the proportion equation
265,235,220.80 : 397,906,639.20 = 83,440,116.80 : x - Step 2: Convert to fraction form
265,235,220.80/397,906,639.20 = 83,440,116.80/x - Step 3: Cross multiply
265,235,220.80x = 397,906,639.20 × 83,440,116.80 - Step 4: Simplify right side
265,235,220.80x = 33,201,376,450,343,456 - Step 5: Solve for x
x = 33,201,376,450,343,456/265,235,220.80 - Step 6: Final answer
x = 125,177,102.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.