Finding the Fourth Proportional to 13,682,236.25, 18,881,487.99 and 7,487,284.41
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Solution
The fourth proportional to 13,682,236.25, 18,881,487.99 and 7,487,284.41 is: 10,332,453.56
Step by Step Solution
- Step 1: Write the proportion equation
13,682,236.25 : 18,881,487.99 = 7,487,284.41 : x - Step 2: Convert to fraction form
13,682,236.25/18,881,487.99 = 7,487,284.41/x - Step 3: Cross multiply
13,682,236.25x = 18,881,487.99 × 7,487,284.41 - Step 4: Simplify right side
13,682,236.25x = 141,371,070,665,129.22 - Step 5: Solve for x
x = 141,371,070,665,129.22/13,682,236.25 - Step 6: Final answer
x = 10,332,453.56
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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.