Finding the Fourth Proportional to 7,045,616.20, 9,722,785.84 and 4,145,194.12
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Solution
The fourth proportional to 7,045,616.20, 9,722,785.84 and 4,145,194.12 is: 5,720,271.09
Step by Step Solution
- Step 1: Write the proportion equation
7,045,616.20 : 9,722,785.84 = 4,145,194.12 : x - Step 2: Convert to fraction form
7,045,616.20/9,722,785.84 = 4,145,194.12/x - Step 3: Cross multiply
7,045,616.20x = 9,722,785.84 × 4,145,194.12 - Step 4: Simplify right side
7,045,616.20x = 40,302,834,693,987.26 - Step 5: Solve for x
x = 40,302,834,693,987.26/7,045,616.20 - Step 6: Final answer
x = 5,720,271.09
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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.