Finding the Fourth Proportional to 13,288,523.05, 18,654,320.75 and 13,288,523.05
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Solution
The fourth proportional to 13,288,523.05, 18,654,320.75 and 13,288,523.05 is: 18,654,320.75
Step by Step Solution
- Step 1: Write the proportion equation
13,288,523.05 : 18,654,320.75 = 13,288,523.05 : x - Step 2: Convert to fraction form
13,288,523.05/18,654,320.75 = 13,288,523.05/x - Step 3: Cross multiply
13,288,523.05x = 18,654,320.75 × 13,288,523.05 - Step 4: Simplify right side
13,288,523.05x = 247,888,371,268,468.31 - Step 5: Solve for x
x = 247,888,371,268,468.31/13,288,523.05 - Step 6: Final answer
x = 18,654,320.75
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.