Finding the Fourth Proportional to 138,303,616.20, 207,313,706.70 and 80,766,270.60
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Solution
The fourth proportional to 138,303,616.20, 207,313,706.70 and 80,766,270.60 is: 121,066,645.94
Step by Step Solution
- Step 1: Write the proportion equation
138,303,616.20 : 207,313,706.70 = 80,766,270.60 : x - Step 2: Convert to fraction form
138,303,616.20/207,313,706.70 = 80,766,270.60/x - Step 3: Cross multiply
138,303,616.20x = 207,313,706.70 × 80,766,270.60 - Step 4: Simplify right side
138,303,616.20x = 16,743,954,934,421,230 - Step 5: Solve for x
x = 16,743,954,934,421,230/138,303,616.20 - Step 6: Final answer
x = 121,066,645.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.