Finding the Fourth Proportional to 10,409,059.50, 14,372,078.85 and 8,355,371.73
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Solution
The fourth proportional to 10,409,059.50, 14,372,078.85 and 8,355,371.73 is: 11,536,494.85
Step by Step Solution
- Step 1: Write the proportion equation
10,409,059.50 : 14,372,078.85 = 8,355,371.73 : x - Step 2: Convert to fraction form
10,409,059.50/14,372,078.85 = 8,355,371.73/x - Step 3: Cross multiply
10,409,059.50x = 14,372,078.85 × 8,355,371.73 - Step 4: Simplify right side
10,409,059.50x = 120,084,061,324,620.91 - Step 5: Solve for x
x = 120,084,061,324,620.91/10,409,059.50 - Step 6: Final answer
x = 11,536,494.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.