Finding the Fourth Proportional to 25,315,357.62, 34,935,361.23 and 13,712,920.99
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Solution
The fourth proportional to 25,315,357.62, 34,935,361.23 and 13,712,920.99 is: 18,923,921.81
Step by Step Solution
- Step 1: Write the proportion equation
25,315,357.62 : 34,935,361.23 = 13,712,920.99 : x - Step 2: Convert to fraction form
25,315,357.62/34,935,361.23 = 13,712,920.99/x - Step 3: Cross multiply
25,315,357.62x = 34,935,361.23 × 13,712,920.99 - Step 4: Simplify right side
25,315,357.62x = 479,065,848,304,099.19 - Step 5: Solve for x
x = 479,065,848,304,099.19/25,315,357.62 - Step 6: Final answer
x = 18,923,921.81
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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.