Finding the Fourth Proportional to 13,747,068.81, 18,968,846.09 and 7,944,729.99
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Solution
The fourth proportional to 13,747,068.81, 18,968,846.09 and 7,944,729.99 is: 10,962,508.62
Step by Step Solution
- Step 1: Write the proportion equation
13,747,068.81 : 18,968,846.09 = 7,944,729.99 : x - Step 2: Convert to fraction form
13,747,068.81/18,968,846.09 = 7,944,729.99/x - Step 3: Cross multiply
13,747,068.81x = 18,968,846.09 × 7,944,729.99 - Step 4: Simplify right side
13,747,068.81x = 150,702,360,367,193.59 - Step 5: Solve for x
x = 150,702,360,367,193.59/13,747,068.81 - Step 6: Final answer
x = 10,962,508.62
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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.