Finding the Fourth Proportional to 13,053,295.20, 19,579,942.80 and 11,121,736.80
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Solution
The fourth proportional to 13,053,295.20, 19,579,942.80 and 11,121,736.80 is: 16,682,605.20
Step by Step Solution
- Step 1: Write the proportion equation
13,053,295.20 : 19,579,942.80 = 11,121,736.80 : x - Step 2: Convert to fraction form
13,053,295.20/19,579,942.80 = 11,121,736.80/x - Step 3: Cross multiply
13,053,295.20x = 19,579,942.80 × 11,121,736.80 - Step 4: Simplify right side
13,053,295.20x = 217,762,970,380,655.06 - Step 5: Solve for x
x = 217,762,970,380,655.06/13,053,295.20 - Step 6: Final answer
x = 16,682,605.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.