Finding the Fourth Proportional to 18,481,833.99, 25,505,887.50 and 10,642,510.62
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Solution
The fourth proportional to 18,481,833.99, 25,505,887.50 and 10,642,510.62 is: 14,687,215.50
Step by Step Solution
- Step 1: Write the proportion equation
18,481,833.99 : 25,505,887.50 = 10,642,510.62 : x - Step 2: Convert to fraction form
18,481,833.99/25,505,887.50 = 10,642,510.62/x - Step 3: Cross multiply
18,481,833.99x = 25,505,887.50 × 10,642,510.62 - Step 4: Simplify right side
18,481,833.99x = 271,446,678,591,275.22 - Step 5: Solve for x
x = 271,446,678,591,275.22/18,481,833.99 - Step 6: Final answer
x = 14,687,215.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.