Finding the Fourth Proportional to 6,810,646.40, 10,215,932.70 and 2,919,530.54
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Solution
The fourth proportional to 6,810,646.40, 10,215,932.70 and 2,919,530.54 is: 4,379,279.99
Step by Step Solution
- Step 1: Write the proportion equation
6,810,646.40 : 10,215,932.70 = 2,919,530.54 : x - Step 2: Convert to fraction form
6,810,646.40/10,215,932.70 = 2,919,530.54/x - Step 3: Cross multiply
6,810,646.40x = 10,215,932.70 × 2,919,530.54 - Step 4: Simplify right side
6,810,646.40x = 29,825,727,512,234.66 - Step 5: Solve for x
x = 29,825,727,512,234.66/6,810,646.40 - Step 6: Final answer
x = 4,379,279.99
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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.