Finding the Fourth Proportional to 235,123,754.42, 324,431,560.74 and 130,687,626.32
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Solution
The fourth proportional to 235,123,754.42, 324,431,560.74 and 130,687,626.32 is: 180,327,124.67
Step by Step Solution
- Step 1: Write the proportion equation
235,123,754.42 : 324,431,560.74 = 130,687,626.32 : x - Step 2: Convert to fraction form
235,123,754.42/324,431,560.74 = 130,687,626.32/x - Step 3: Cross multiply
235,123,754.42x = 324,431,560.74 × 130,687,626.32 - Step 4: Simplify right side
235,123,754.42x = 42,399,190,576,403,504 - Step 5: Solve for x
x = 42,399,190,576,403,504/235,123,754.42 - Step 6: Final answer
x = 180,327,124.67
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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.