Finding the Fourth Proportional to 20,268,310.76, 27,970,295.86 and 10,975,896.84
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Solution
The fourth proportional to 20,268,310.76, 27,970,295.86 and 10,975,896.84 is: 15,146,752.27
Step by Step Solution
- Step 1: Write the proportion equation
20,268,310.76 : 27,970,295.86 = 10,975,896.84 : x - Step 2: Convert to fraction form
20,268,310.76/27,970,295.86 = 10,975,896.84/x - Step 3: Cross multiply
20,268,310.76x = 27,970,295.86 × 10,975,896.84 - Step 4: Simplify right side
20,268,310.76x = 306,999,081,943,639.06 - Step 5: Solve for x
x = 306,999,081,943,639.06/20,268,310.76 - Step 6: Final answer
x = 15,146,752.27
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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.