Finding the Fourth Proportional to 7,681,381.36, 11,525,170.38 and 3,418,634.08
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Solution
The fourth proportional to 7,681,381.36, 11,525,170.38 and 3,418,634.08 is: 5,129,330.05
Step by Step Solution
- Step 1: Write the proportion equation
7,681,381.36 : 11,525,170.38 = 3,418,634.08 : x - Step 2: Convert to fraction form
7,681,381.36/11,525,170.38 = 3,418,634.08/x - Step 3: Cross multiply
7,681,381.36x = 11,525,170.38 × 3,418,634.08 - Step 4: Simplify right side
7,681,381.36x = 39,400,340,238,874.55 - Step 5: Solve for x
x = 39,400,340,238,874.55/7,681,381.36 - Step 6: Final answer
x = 5,129,330.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.