Finding the Fourth Proportional to 3,129,428.40, 4,314,370.68 and 2,675,419.62
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Solution
The fourth proportional to 3,129,428.40, 4,314,370.68 and 2,675,419.62 is: 3,688,453.77
Step by Step Solution
- Step 1: Write the proportion equation
3,129,428.40 : 4,314,370.68 = 2,675,419.62 : x - Step 2: Convert to fraction form
3,129,428.40/4,314,370.68 = 2,675,419.62/x - Step 3: Cross multiply
3,129,428.40x = 4,314,370.68 × 2,675,419.62 - Step 4: Simplify right side
3,129,428.40x = 11,542,751,965,224.74 - Step 5: Solve for x
x = 11,542,751,965,224.74/3,129,428.40 - Step 6: Final answer
x = 3,688,453.77
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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.