Finding the Fourth Proportional to 13,310,048.24, 18,367,866.36 and 7,198,476.72
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Solution
The fourth proportional to 13,310,048.24, 18,367,866.36 and 7,198,476.72 is: 9,933,897.76
Step by Step Solution
- Step 1: Write the proportion equation
13,310,048.24 : 18,367,866.36 = 7,198,476.72 : x - Step 2: Convert to fraction form
13,310,048.24/18,367,866.36 = 7,198,476.72/x - Step 3: Cross multiply
13,310,048.24x = 18,367,866.36 × 7,198,476.72 - Step 4: Simplify right side
13,310,048.24x = 132,220,658,388,531.12 - Step 5: Solve for x
x = 132,220,658,388,531.12/13,310,048.24 - Step 6: Final answer
x = 9,933,897.76
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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.