Finding the Fourth Proportional to 8,269,980.99, 11,410,901.32 and 4,831,557.72
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Solution
The fourth proportional to 8,269,980.99, 11,410,901.32 and 4,831,557.72 is: 6,666,572.56
Step by Step Solution
- Step 1: Write the proportion equation
8,269,980.99 : 11,410,901.32 = 4,831,557.72 : x - Step 2: Convert to fraction form
8,269,980.99/11,410,901.32 = 4,831,557.72/x - Step 3: Cross multiply
8,269,980.99x = 11,410,901.32 × 4,831,557.72 - Step 4: Simplify right side
8,269,980.99x = 55,132,428,307,749.68 - Step 5: Solve for x
x = 55,132,428,307,749.68/8,269,980.99 - Step 6: Final answer
x = 6,666,572.56
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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.