Finding the Fourth Proportional to 7,825,908.10, 11,738,862.15 and 2,146,123.30
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Solution
The fourth proportional to 7,825,908.10, 11,738,862.15 and 2,146,123.30 is: 3,219,184.95
Step by Step Solution
- Step 1: Write the proportion equation
7,825,908.10 : 11,738,862.15 = 2,146,123.30 : x - Step 2: Convert to fraction form
7,825,908.10/11,738,862.15 = 2,146,123.30/x - Step 3: Cross multiply
7,825,908.10x = 11,738,862.15 × 2,146,123.30 - Step 4: Simplify right side
7,825,908.10x = 25,193,045,575,603.09 - Step 5: Solve for x
x = 25,193,045,575,603.09/7,825,908.10 - Step 6: Final answer
x = 3,219,184.95
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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.