Finding the Fourth Proportional to 220,163,387.48, 330,247,083.58 and 66,809,450.60
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Solution
The fourth proportional to 220,163,387.48, 330,247,083.58 and 66,809,450.60 is: 100,214,783.52
Step by Step Solution
- Step 1: Write the proportion equation
220,163,387.48 : 330,247,083.58 = 66,809,450.60 : x - Step 2: Convert to fraction form
220,163,387.48/330,247,083.58 = 66,809,450.60/x - Step 3: Cross multiply
220,163,387.48x = 330,247,083.58 × 66,809,450.60 - Step 4: Simplify right side
220,163,387.48x = 22,063,626,216,232,080 - Step 5: Solve for x
x = 22,063,626,216,232,080/220,163,387.48 - Step 6: Final answer
x = 100,214,783.52
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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.