Finding the Fourth Proportional to 6,816,948.79, 9,408,789.41 and 4,168,249.05
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Solution
The fourth proportional to 6,816,948.79, 9,408,789.41 and 4,168,249.05 is: 5,753,039.78
Step by Step Solution
- Step 1: Write the proportion equation
6,816,948.79 : 9,408,789.41 = 4,168,249.05 : x - Step 2: Convert to fraction form
6,816,948.79/9,408,789.41 = 4,168,249.05/x - Step 3: Cross multiply
6,816,948.79x = 9,408,789.41 × 4,168,249.05 - Step 4: Simplify right side
6,816,948.79x = 39,218,177,526,955.03 - Step 5: Solve for x
x = 39,218,177,526,955.03/6,816,948.79 - Step 6: Final answer
x = 5,753,039.78
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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.