Finding the Fourth Proportional to 13,368,077.20, 18,447,415.09 and 7,568,062.08
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Solution
The fourth proportional to 13,368,077.20, 18,447,415.09 and 7,568,062.08 is: 10,443,624.80
Step by Step Solution
- Step 1: Write the proportion equation
13,368,077.20 : 18,447,415.09 = 7,568,062.08 : x - Step 2: Convert to fraction form
13,368,077.20/18,447,415.09 = 7,568,062.08/x - Step 3: Cross multiply
13,368,077.20x = 18,447,415.09 × 7,568,062.08 - Step 4: Simplify right side
13,368,077.20x = 139,611,182,616,648.78 - Step 5: Solve for x
x = 139,611,182,616,648.78/13,368,077.20 - Step 6: Final answer
x = 10,443,624.80
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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.