Finding the Fourth Proportional to 18,074,886.18, 27,116,921.97 and 5,121,022.74
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Solution
The fourth proportional to 18,074,886.18, 27,116,921.97 and 5,121,022.74 is: 7,682,835.33
Step by Step Solution
- Step 1: Write the proportion equation
18,074,886.18 : 27,116,921.97 = 5,121,022.74 : x - Step 2: Convert to fraction form
18,074,886.18/27,116,921.97 = 5,121,022.74/x - Step 3: Cross multiply
18,074,886.18x = 27,116,921.97 × 5,121,022.74 - Step 4: Simplify right side
18,074,886.18x = 138,866,374,047,175.59 - Step 5: Solve for x
x = 138,866,374,047,175.59/18,074,886.18 - Step 6: Final answer
x = 7,682,835.33
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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.