Finding the Fourth Proportional to 13,325,067.84, 18,388,589.76 and 7,213,491.84
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Solution
The fourth proportional to 13,325,067.84, 18,388,589.76 and 7,213,491.84 is: 9,954,616.65
Step by Step Solution
- Step 1: Write the proportion equation
13,325,067.84 : 18,388,589.76 = 7,213,491.84 : x - Step 2: Convert to fraction form
13,325,067.84/18,388,589.76 = 7,213,491.84/x - Step 3: Cross multiply
13,325,067.84x = 18,388,589.76 × 7,213,491.84 - Step 4: Simplify right side
13,325,067.84x = 132,645,942,182,867.56 - Step 5: Solve for x
x = 132,645,942,182,867.56/13,325,067.84 - Step 6: Final answer
x = 9,954,616.65
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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.