Finding the Fourth Proportional to 8,029,658.10, 11,065,614.45 and 7,882,069.62
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Solution
The fourth proportional to 8,029,658.10, 11,065,614.45 and 7,882,069.62 is: 10,862,223.82
Step by Step Solution
- Step 1: Write the proportion equation
8,029,658.10 : 11,065,614.45 = 7,882,069.62 : x - Step 2: Convert to fraction form
8,029,658.10/11,065,614.45 = 7,882,069.62/x - Step 3: Cross multiply
8,029,658.10x = 11,065,614.45 × 7,882,069.62 - Step 4: Simplify right side
8,029,658.10x = 87,219,943,482,978 - Step 5: Solve for x
x = 87,219,943,482,978/8,029,658.10 - Step 6: Final answer
x = 10,862,223.82
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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.