Finding the Fourth Proportional to 7,980,115.91, 11,971,857.09 and 2,588,347.58
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Solution
The fourth proportional to 7,980,115.91, 11,971,857.09 and 2,588,347.58 is: 3,883,067.32
Step by Step Solution
- Step 1: Write the proportion equation
7,980,115.91 : 11,971,857.09 = 2,588,347.58 : x - Step 2: Convert to fraction form
7,980,115.91/11,971,857.09 = 2,588,347.58/x - Step 3: Cross multiply
7,980,115.91x = 11,971,857.09 × 2,588,347.58 - Step 4: Simplify right side
7,980,115.91x = 30,987,327,327,007.34 - Step 5: Solve for x
x = 30,987,327,327,007.34/7,980,115.91 - Step 6: Final answer
x = 3,883,067.32
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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.