Finding the Fourth Proportional to 18,615,101.76, 25,680,218.24 and 10,880,470.08
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Solution
The fourth proportional to 18,615,101.76, 25,680,218.24 and 10,880,470.08 is: 15,010,009.07
Step by Step Solution
- Step 1: Write the proportion equation
18,615,101.76 : 25,680,218.24 = 10,880,470.08 : x - Step 2: Convert to fraction form
18,615,101.76/25,680,218.24 = 10,880,470.08/x - Step 3: Cross multiply
18,615,101.76x = 25,680,218.24 × 10,880,470.08 - Step 4: Simplify right side
18,615,101.76x = 279,412,846,208,190.25 - Step 5: Solve for x
x = 279,412,846,208,190.25/18,615,101.76 - Step 6: Final answer
x = 15,010,009.07
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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.