Finding the Fourth Proportional to 13,135,027.20, 19,669,363.20 and 8,622,873.60
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Solution
The fourth proportional to 13,135,027.20, 19,669,363.20 and 8,622,873.60 is: 12,912,529.99
Step by Step Solution
- Step 1: Write the proportion equation
13,135,027.20 : 19,669,363.20 = 8,622,873.60 : x - Step 2: Convert to fraction form
13,135,027.20/19,669,363.20 = 8,622,873.60/x - Step 3: Cross multiply
13,135,027.20x = 19,669,363.20 × 8,622,873.60 - Step 4: Simplify right side
13,135,027.20x = 169,606,432,666,091.50 - Step 5: Solve for x
x = 169,606,432,666,091.50/13,135,027.20 - Step 6: Final answer
x = 12,912,529.99
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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.