Finding the Fourth Proportional to 3,177,221.25, 4,381,547.81 and 2,090,415.09
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Solution
The fourth proportional to 3,177,221.25, 4,381,547.81 and 2,090,415.09 is: 2,882,787.48
Step by Step Solution
- Step 1: Write the proportion equation
3,177,221.25 : 4,381,547.81 = 2,090,415.09 : x - Step 2: Convert to fraction form
3,177,221.25/4,381,547.81 = 2,090,415.09/x - Step 3: Cross multiply
3,177,221.25x = 4,381,547.81 × 2,090,415.09 - Step 4: Simplify right side
3,177,221.25x = 9,159,253,649,128.38 - Step 5: Solve for x
x = 9,159,253,649,128.38/3,177,221.25 - Step 6: Final answer
x = 2,882,787.48
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1.5x scale
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.