Finding the Fourth Proportional to 13,744,715.21, 18,968,034.47 and 7,549,891.68
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Solution
The fourth proportional to 13,744,715.21, 18,968,034.47 and 7,549,891.68 is: 10,419,030.40
Step by Step Solution
- Step 1: Write the proportion equation
13,744,715.21 : 18,968,034.47 = 7,549,891.68 : x - Step 2: Convert to fraction form
13,744,715.21/18,968,034.47 = 7,549,891.68/x - Step 3: Cross multiply
13,744,715.21x = 18,968,034.47 × 7,549,891.68 - Step 4: Simplify right side
13,744,715.21x = 143,206,605,593,256.75 - Step 5: Solve for x
x = 143,206,605,593,256.75/13,744,715.21 - Step 6: Final answer
x = 10,419,030.40
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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.