Finding the Fourth Proportional to 13,324,908.99, 18,388,433.07 and 7,213,337.49
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Solution
The fourth proportional to 13,324,908.99, 18,388,433.07 and 7,213,337.49 is: 9,954,437.49
Step by Step Solution
- Step 1: Write the proportion equation
13,324,908.99 : 18,388,433.07 = 7,213,337.49 : x - Step 2: Convert to fraction form
13,324,908.99/18,388,433.07 = 7,213,337.49/x - Step 3: Cross multiply
13,324,908.99x = 18,388,433.07 × 7,213,337.49 - Step 4: Simplify right side
13,324,908.99x = 132,641,973,646,186.80 - Step 5: Solve for x
x = 132,641,973,646,186.80/13,324,908.99 - Step 6: Final answer
x = 9,954,437.49
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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.