Finding the Fourth Proportional to 13,324,902.98, 18,388,424.79 and 7,213,331.48
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Solution
The fourth proportional to 13,324,902.98, 18,388,424.79 and 7,213,331.48 is: 9,954,429.20
Step by Step Solution
- Step 1: Write the proportion equation
13,324,902.98 : 18,388,424.79 = 7,213,331.48 : x - Step 2: Convert to fraction form
13,324,902.98/18,388,424.79 = 7,213,331.48/x - Step 3: Cross multiply
13,324,902.98x = 18,388,424.79 × 7,213,331.48 - Step 4: Simplify right side
13,324,902.98x = 132,641,803,313,377.25 - Step 5: Solve for x
x = 132,641,803,313,377.25/13,324,902.98 - Step 6: Final answer
x = 9,954,429.20
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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.