Finding the Fourth Proportional to 18,220,053.24, 25,143,678.99 and 9,960,151.68
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Solution
The fourth proportional to 18,220,053.24, 25,143,678.99 and 9,960,151.68 is: 13,745,012.34
Step by Step Solution
- Step 1: Write the proportion equation
18,220,053.24 : 25,143,678.99 = 9,960,151.68 : x - Step 2: Convert to fraction form
18,220,053.24/25,143,678.99 = 9,960,151.68/x - Step 3: Cross multiply
18,220,053.24x = 25,143,678.99 × 9,960,151.68 - Step 4: Simplify right side
18,220,053.24x = 250,434,856,533,629.19 - Step 5: Solve for x
x = 250,434,856,533,629.19/18,220,053.24 - Step 6: Final answer
x = 13,745,012.34
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1.5x scale
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.