Finding the Fourth Proportional to 18,206,899.10, 27,306,849.45 and 5,427,820.70
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Solution
The fourth proportional to 18,206,899.10, 27,306,849.45 and 5,427,820.70 is: 8,140,687.87
Step by Step Solution
- Step 1: Write the proportion equation
18,206,899.10 : 27,306,849.45 = 5,427,820.70 : x - Step 2: Convert to fraction form
18,206,899.10/27,306,849.45 = 5,427,820.70/x - Step 3: Cross multiply
18,206,899.10x = 27,306,849.45 × 5,427,820.70 - Step 4: Simplify right side
18,206,899.10x = 148,216,682,696,493.62 - Step 5: Solve for x
x = 148,216,682,696,493.62/18,206,899.10 - Step 6: Final answer
x = 8,140,687.87
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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.