Finding the Fourth Proportional to 7,892,405.21, 10,812,414.20 and 7,597,329.84
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Solution
The fourth proportional to 7,892,405.21, 10,812,414.20 and 7,597,329.84 is: 10,408,167.71
Step by Step Solution
- Step 1: Write the proportion equation
7,892,405.21 : 10,812,414.20 = 7,597,329.84 : x - Step 2: Convert to fraction form
7,892,405.21/10,812,414.20 = 7,597,329.84/x - Step 3: Cross multiply
7,892,405.21x = 10,812,414.20 × 7,597,329.84 - Step 4: Simplify right side
7,892,405.21x = 82,145,477,006,113.08 - Step 5: Solve for x
x = 82,145,477,006,113.08/7,892,405.21 - Step 6: Final answer
x = 10,408,167.71
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.