Finding the Fourth Proportional to 13,640,772.75, 18,824,268.02 and 7,529,202.87
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Solution
The fourth proportional to 13,640,772.75, 18,824,268.02 and 7,529,202.87 is: 10,390,300.85
Step by Step Solution
- Step 1: Write the proportion equation
13,640,772.75 : 18,824,268.02 = 7,529,202.87 : x - Step 2: Convert to fraction form
13,640,772.75/18,824,268.02 = 7,529,202.87/x - Step 3: Cross multiply
13,640,772.75x = 18,824,268.02 × 7,529,202.87 - Step 4: Simplify right side
13,640,772.75x = 141,731,732,764,187.22 - Step 5: Solve for x
x = 141,731,732,764,187.22/13,640,772.75 - Step 6: Final answer
x = 10,390,300.85
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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.