Finding the Fourth Proportional to 18,259,356.99, 27,378,775.04 and 12,508,574.88
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Solution
The fourth proportional to 18,259,356.99, 27,378,775.04 and 12,508,574.88 is: 18,755,833.40
Step by Step Solution
- Step 1: Write the proportion equation
18,259,356.99 : 27,378,775.04 = 12,508,574.88 : x - Step 2: Convert to fraction form
18,259,356.99/27,378,775.04 = 12,508,574.88/x - Step 3: Cross multiply
18,259,356.99x = 27,378,775.04 × 12,508,574.88 - Step 4: Simplify right side
18,259,356.99x = 342,469,457,810,233.38 - Step 5: Solve for x
x = 342,469,457,810,233.38/18,259,356.99 - Step 6: Final answer
x = 18,755,833.40
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1.5x scale
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.