Finding the Fourth Proportional to 7,790,682.80, 11,739,201.26 and 6,401,850.32
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Solution
The fourth proportional to 7,790,682.80, 11,739,201.26 and 6,401,850.32 is: 9,646,472.75
Step by Step Solution
- Step 1: Write the proportion equation
7,790,682.80 : 11,739,201.26 = 6,401,850.32 : x - Step 2: Convert to fraction form
7,790,682.80/11,739,201.26 = 6,401,850.32/x - Step 3: Cross multiply
7,790,682.80x = 11,739,201.26 × 6,401,850.32 - Step 4: Simplify right side
7,790,682.80x = 75,152,609,342,875.41 - Step 5: Solve for x
x = 75,152,609,342,875.41/7,790,682.80 - Step 6: Final answer
x = 9,646,472.75
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.