Finding the Fourth Proportional to 7,892,406.21, 10,812,415.56 and 7,597,330.84
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Solution
The fourth proportional to 7,892,406.21, 10,812,415.56 and 7,597,330.84 is: 10,408,169.07
Step by Step Solution
- Step 1: Write the proportion equation
7,892,406.21 : 10,812,415.56 = 7,597,330.84 : x - Step 2: Convert to fraction form
7,892,406.21/10,812,415.56 = 7,597,330.84/x - Step 3: Cross multiply
7,892,406.21x = 10,812,415.56 × 7,597,330.84 - Step 4: Simplify right side
7,892,406.21x = 82,145,498,188,883.88 - Step 5: Solve for x
x = 82,145,498,188,883.88/7,892,406.21 - Step 6: Final answer
x = 10,408,169.07
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1.5x scale
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.