Finding the Fourth Proportional to 7,412,894.70, 11,121,164.55 and 2,555,276.10
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Solution
The fourth proportional to 7,412,894.70, 11,121,164.55 and 2,555,276.10 is: 3,833,542.38
Step by Step Solution
- Step 1: Write the proportion equation
7,412,894.70 : 11,121,164.55 = 2,555,276.10 : x - Step 2: Convert to fraction form
7,412,894.70/11,121,164.55 = 2,555,276.10/x - Step 3: Cross multiply
7,412,894.70x = 11,121,164.55 × 2,555,276.10 - Step 4: Simplify right side
7,412,894.70x = 28,417,645,978,782.26 - Step 5: Solve for x
x = 28,417,645,978,782.26/7,412,894.70 - Step 6: Final answer
x = 3,833,542.38
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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.