Finding the Fourth Proportional to 20,251,756.78, 27,947,423.50 and 10,959,327.14
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Solution
The fourth proportional to 20,251,756.78, 27,947,423.50 and 10,959,327.14 is: 15,123,870.99
Step by Step Solution
- Step 1: Write the proportion equation
20,251,756.78 : 27,947,423.50 = 10,959,327.14 : x - Step 2: Convert to fraction form
20,251,756.78/27,947,423.50 = 10,959,327.14/x - Step 3: Cross multiply
20,251,756.78x = 27,947,423.50 × 10,959,327.14 - Step 4: Simplify right side
20,251,756.78x = 306,284,956,856,623.81 - Step 5: Solve for x
x = 306,284,956,856,623.81/20,251,756.78 - Step 6: Final answer
x = 15,123,870.99
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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.