Finding the Fourth Proportional to 7,725,568.68, 10,661,076.74 and 4,240,909.80
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Solution
The fourth proportional to 7,725,568.68, 10,661,076.74 and 4,240,909.80 is: 5,852,341.32
Step by Step Solution
- Step 1: Write the proportion equation
7,725,568.68 : 10,661,076.74 = 4,240,909.80 : x - Step 2: Convert to fraction form
7,725,568.68/10,661,076.74 = 4,240,909.80/x - Step 3: Cross multiply
7,725,568.68x = 10,661,076.74 × 4,240,909.80 - Step 4: Simplify right side
7,725,568.68x = 45,212,664,825,218.05 - Step 5: Solve for x
x = 45,212,664,825,218.05/7,725,568.68 - Step 6: Final answer
x = 5,852,341.32
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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.