Finding the Fourth Proportional to 20,202,739.20, 27,872,864.64 and 11,498,734.08
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Solution
The fourth proportional to 20,202,739.20, 27,872,864.64 and 11,498,734.08 is: 15,864,316.98
Step by Step Solution
- Step 1: Write the proportion equation
20,202,739.20 : 27,872,864.64 = 11,498,734.08 : x - Step 2: Convert to fraction form
20,202,739.20/27,872,864.64 = 11,498,734.08/x - Step 3: Cross multiply
20,202,739.20x = 27,872,864.64 × 11,498,734.08 - Step 4: Simplify right side
20,202,739.20x = 320,502,658,543,194.94 - Step 5: Solve for x
x = 320,502,658,543,194.94/20,202,739.20 - Step 6: Final answer
x = 15,864,316.98
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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.