Finding the Fourth Proportional to 199,593,821.20, 275,336,302.84 and 126,297,478.48
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Solution
The fourth proportional to 199,593,821.20, 275,336,302.84 and 126,297,478.48 is: 174,225,236.90
Step by Step Solution
- Step 1: Write the proportion equation
199,593,821.20 : 275,336,302.84 = 126,297,478.48 : x - Step 2: Convert to fraction form
199,593,821.20/275,336,302.84 = 126,297,478.48/x - Step 3: Cross multiply
199,593,821.20x = 275,336,302.84 × 126,297,478.48 - Step 4: Simplify right side
199,593,821.20x = 34,774,280,782,697,660 - Step 5: Solve for x
x = 34,774,280,782,697,660/199,593,821.20 - Step 6: Final answer
x = 174,225,236.90
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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.