Finding the Fourth Proportional to 5,646,784.20, 8,470,176.30 and 2,279,257.80
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Solution
The fourth proportional to 5,646,784.20, 8,470,176.30 and 2,279,257.80 is: 3,418,886.70
Step by Step Solution
- Step 1: Write the proportion equation
5,646,784.20 : 8,470,176.30 = 2,279,257.80 : x - Step 2: Convert to fraction form
5,646,784.20/8,470,176.30 = 2,279,257.80/x - Step 3: Cross multiply
5,646,784.20x = 8,470,176.30 × 2,279,257.80 - Step 4: Simplify right side
5,646,784.20x = 19,305,715,399,150.14 - Step 5: Solve for x
x = 19,305,715,399,150.14/5,646,784.20 - Step 6: Final answer
x = 3,418,886.70
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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.