Finding the Fourth Proportional to 13,135,030.20, 19,669,367.70 and 8,622,876.60
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Solution
The fourth proportional to 13,135,030.20, 19,669,367.70 and 8,622,876.60 is: 12,912,534.49
Step by Step Solution
- Step 1: Write the proportion equation
13,135,030.20 : 19,669,367.70 = 8,622,876.60 : x - Step 2: Convert to fraction form
13,135,030.20/19,669,367.70 = 8,622,876.60/x - Step 3: Cross multiply
13,135,030.20x = 19,669,367.70 × 8,622,876.60 - Step 4: Simplify right side
13,135,030.20x = 169,606,530,477,125.81 - Step 5: Solve for x
x = 169,606,530,477,125.81/13,135,030.20 - Step 6: Final answer
x = 12,912,534.49
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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.