Finding the Fourth Proportional to 13,201,213.53, 18,219,542.49 and 7,322,147.49
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Solution
The fourth proportional to 13,201,213.53, 18,219,542.49 and 7,322,147.49 is: 10,105,599.54
Step by Step Solution
- Step 1: Write the proportion equation
13,201,213.53 : 18,219,542.49 = 7,322,147.49 : x - Step 2: Convert to fraction form
13,201,213.53/18,219,542.49 = 7,322,147.49/x - Step 3: Cross multiply
13,201,213.53x = 18,219,542.49 × 7,322,147.49 - Step 4: Simplify right side
13,201,213.53x = 133,406,177,312,101.84 - Step 5: Solve for x
x = 133,406,177,312,101.84/13,201,213.53 - Step 6: Final answer
x = 10,105,599.54
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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.