Finding the Fourth Proportional to 221,245,266.90, 331,584,465.15 and 196,869,839.70
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Solution
The fourth proportional to 221,245,266.90, 331,584,465.15 and 196,869,839.70 is: 295,052,551.48
Step by Step Solution
- Step 1: Write the proportion equation
221,245,266.90 : 331,584,465.15 = 196,869,839.70 : x - Step 2: Convert to fraction form
221,245,266.90/331,584,465.15 = 196,869,839.70/x - Step 3: Cross multiply
221,245,266.90x = 331,584,465.15 × 196,869,839.70 - Step 4: Simplify right side
221,245,266.90x = 65,278,980,501,090,728 - Step 5: Solve for x
x = 65,278,980,501,090,728/221,245,266.90 - Step 6: Final answer
x = 295,052,551.48
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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.