Finding the Fourth Proportional to 13,310,027.19, 18,367,837.49 and 7,198,455.69
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Solution
The fourth proportional to 13,310,027.19, 18,367,837.49 and 7,198,455.69 is: 9,933,868.84
Step by Step Solution
- Step 1: Write the proportion equation
13,310,027.19 : 18,367,837.49 = 7,198,455.69 : x - Step 2: Convert to fraction form
13,310,027.19/18,367,837.49 = 7,198,455.69/x - Step 3: Cross multiply
13,310,027.19x = 18,367,837.49 × 7,198,455.69 - Step 4: Simplify right side
13,310,027.19x = 132,220,064,310,881.97 - Step 5: Solve for x
x = 132,220,064,310,881.97/13,310,027.19 - Step 6: Final answer
x = 9,933,868.84
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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.