Finding the Fourth Proportional to 13,325,294.49, 18,388,912.59 and 7,213,722.99
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Solution
The fourth proportional to 13,325,294.49, 18,388,912.59 and 7,213,722.99 is: 9,954,941.08
Step by Step Solution
- Step 1: Write the proportion equation
13,325,294.49 : 18,388,912.59 = 7,213,722.99 : x - Step 2: Convert to fraction form
13,325,294.49/18,388,912.59 = 7,213,722.99/x - Step 3: Cross multiply
13,325,294.49x = 18,388,912.59 × 7,213,722.99 - Step 4: Simplify right side
13,325,294.49x = 132,652,521,511,583.45 - Step 5: Solve for x
x = 132,652,521,511,583.45/13,325,294.49 - Step 6: Final answer
x = 9,954,941.08
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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.