Finding the Fourth Proportional to 7,763,647.86, 11,647,632.11 and 3,387,170.07
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Solution
The fourth proportional to 7,763,647.86, 11,647,632.11 and 3,387,170.07 is: 5,081,697.62
Step by Step Solution
- Step 1: Write the proportion equation
7,763,647.86 : 11,647,632.11 = 3,387,170.07 : x - Step 2: Convert to fraction form
7,763,647.86/11,647,632.11 = 3,387,170.07/x - Step 3: Cross multiply
7,763,647.86x = 11,647,632.11 × 3,387,170.07 - Step 4: Simplify right side
7,763,647.86x = 39,452,510,852,427.09 - Step 5: Solve for x
x = 39,452,510,852,427.09/7,763,647.86 - Step 6: Final answer
x = 5,081,697.62
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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.