Finding the Fourth Proportional to 18,440,228.62, 25,450,846.68 and 10,998,368.56
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Solution
The fourth proportional to 18,440,228.62, 25,450,846.68 and 10,998,368.56 is: 15,179,735.44
Step by Step Solution
- Step 1: Write the proportion equation
18,440,228.62 : 25,450,846.68 = 10,998,368.56 : x - Step 2: Convert to fraction form
18,440,228.62/25,450,846.68 = 10,998,368.56/x - Step 3: Cross multiply
18,440,228.62x = 25,450,846.68 × 10,998,368.56 - Step 4: Simplify right side
18,440,228.62x = 279,917,791,950,692.41 - Step 5: Solve for x
x = 279,917,791,950,692.41/18,440,228.62 - Step 6: Final answer
x = 15,179,735.44
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1.5x scale
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.