Finding the Fourth Proportional to 18,343,827.20, 27,508,742.40 and 5,560,083.20
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Solution
The fourth proportional to 18,343,827.20, 27,508,742.40 and 5,560,083.20 is: 8,338,003.56
Step by Step Solution
- Step 1: Write the proportion equation
18,343,827.20 : 27,508,742.40 = 5,560,083.20 : x - Step 2: Convert to fraction form
18,343,827.20/27,508,742.40 = 5,560,083.20/x - Step 3: Cross multiply
18,343,827.20x = 27,508,742.40 × 5,560,083.20 - Step 4: Simplify right side
18,343,827.20x = 152,950,896,471,367.69 - Step 5: Solve for x
x = 152,950,896,471,367.69/18,343,827.20 - Step 6: Final answer
x = 8,338,003.56
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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.