Finding the Fourth Proportional to 18,418,537.76, 27,646,967.79 and 13,566,322.26
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Solution
The fourth proportional to 18,418,537.76, 27,646,967.79 and 13,566,322.26 is: 20,363,596.69
Step by Step Solution
- Step 1: Write the proportion equation
18,418,537.76 : 27,646,967.79 = 13,566,322.26 : x - Step 2: Convert to fraction form
18,418,537.76/27,646,967.79 = 13,566,322.26/x - Step 3: Cross multiply
18,418,537.76x = 27,646,967.79 × 13,566,322.26 - Step 4: Simplify right side
18,418,537.76x = 375,067,674,550,980 - Step 5: Solve for x
x = 375,067,674,550,980/18,418,537.76 - Step 6: Final answer
x = 20,363,596.69
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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.