Finding the Fourth Proportional to 20,252,206.28, 27,947,942.82 and 10,959,769.64
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Solution
The fourth proportional to 20,252,206.28, 27,947,942.82 and 10,959,769.64 is: 15,124,426.99
Step by Step Solution
- Step 1: Write the proportion equation
20,252,206.28 : 27,947,942.82 = 10,959,769.64 : x - Step 2: Convert to fraction form
20,252,206.28/27,947,942.82 = 10,959,769.64/x - Step 3: Cross multiply
20,252,206.28x = 27,947,942.82 × 10,959,769.64 - Step 4: Simplify right side
20,252,206.28x = 306,303,015,219,092 - Step 5: Solve for x
x = 306,303,015,219,092/20,252,206.28 - Step 6: Final answer
x = 15,124,426.99
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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.