Finding the Fourth Proportional to 7,918,626.21, 11,882,432.64 and 4,275,307.57
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Solution
The fourth proportional to 7,918,626.21, 11,882,432.64 and 4,275,307.57 is: 6,415,387.32
Step by Step Solution
- Step 1: Write the proportion equation
7,918,626.21 : 11,882,432.64 = 4,275,307.57 : x - Step 2: Convert to fraction form
7,918,626.21/11,882,432.64 = 4,275,307.57/x - Step 3: Cross multiply
7,918,626.21x = 11,882,432.64 × 4,275,307.57 - Step 4: Simplify right side
7,918,626.21x = 50,801,054,215,807.09 - Step 5: Solve for x
x = 50,801,054,215,807.09/7,918,626.21 - Step 6: Final answer
x = 6,415,387.32
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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.