Finding the Fourth Proportional to 5,180,816.07, 7,149,640.59 and 2,857,779.18
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Solution
The fourth proportional to 5,180,816.07, 7,149,640.59 and 2,857,779.18 is: 3,943,798.38
Step by Step Solution
- Step 1: Write the proportion equation
5,180,816.07 : 7,149,640.59 = 2,857,779.18 : x - Step 2: Convert to fraction form
5,180,816.07/7,149,640.59 = 2,857,779.18/x - Step 3: Cross multiply
5,180,816.07x = 7,149,640.59 × 2,857,779.18 - Step 4: Simplify right side
5,180,816.07x = 20,432,094,022,584.92 - Step 5: Solve for x
x = 20,432,094,022,584.92/5,180,816.07 - Step 6: Final answer
x = 3,943,798.38
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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.