Finding the Fourth Proportional to 18,338,315.48, 25,305,844.08 and 10,992,472.46
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Solution
The fourth proportional to 18,338,315.48, 25,305,844.08 and 10,992,472.46 is: 15,168,993.82
Step by Step Solution
- Step 1: Write the proportion equation
18,338,315.48 : 25,305,844.08 = 10,992,472.46 : x - Step 2: Convert to fraction form
18,338,315.48/25,305,844.08 = 10,992,472.46/x - Step 3: Cross multiply
18,338,315.48x = 25,305,844.08 × 10,992,472.46 - Step 4: Simplify right side
18,338,315.48x = 278,173,794,126,454.03 - Step 5: Solve for x
x = 278,173,794,126,454.03/18,338,315.48 - Step 6: Final answer
x = 15,168,993.82
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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.