Finding the Fourth Proportional to 14,721,418.05, 20,315,912.94 and 8,195,488.62
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Solution
The fourth proportional to 14,721,418.05, 20,315,912.94 and 8,195,488.62 is: 11,309,972.50
Step by Step Solution
- Step 1: Write the proportion equation
14,721,418.05 : 20,315,912.94 = 8,195,488.62 : x - Step 2: Convert to fraction form
14,721,418.05/20,315,912.94 = 8,195,488.62/x - Step 3: Cross multiply
14,721,418.05x = 20,315,912.94 × 8,195,488.62 - Step 4: Simplify right side
14,721,418.05x = 166,498,833,304,680.75 - Step 5: Solve for x
x = 166,498,833,304,680.75/14,721,418.05 - Step 6: Final answer
x = 11,309,972.50
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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.