Finding the Fourth Proportional to 5,377,928.80, 8,066,893.20 and 4,160,207.20
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Solution
The fourth proportional to 5,377,928.80, 8,066,893.20 and 4,160,207.20 is: 6,240,310.80
Step by Step Solution
- Step 1: Write the proportion equation
5,377,928.80 : 8,066,893.20 = 4,160,207.20 : x - Step 2: Convert to fraction form
5,377,928.80/8,066,893.20 = 4,160,207.20/x - Step 3: Cross multiply
5,377,928.80x = 8,066,893.20 × 4,160,207.20 - Step 4: Simplify right side
5,377,928.80x = 33,559,947,172,271.04 - Step 5: Solve for x
x = 33,559,947,172,271.04/5,377,928.80 - Step 6: Final answer
x = 6,240,310.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.