Finding the Fourth Proportional to 5,220,968.87, 7,204,828.45 and 2,897,725.09
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Solution
The fourth proportional to 5,220,968.87, 7,204,828.45 and 2,897,725.09 is: 3,998,800.36
Step by Step Solution
- Step 1: Write the proportion equation
5,220,968.87 : 7,204,828.45 = 2,897,725.09 : x - Step 2: Convert to fraction form
5,220,968.87/7,204,828.45 = 2,897,725.09/x - Step 3: Cross multiply
5,220,968.87x = 7,204,828.45 × 2,897,725.09 - Step 4: Simplify right side
5,220,968.87x = 20,877,612,154,222.18 - Step 5: Solve for x
x = 20,877,612,154,222.18/5,220,968.87 - Step 6: Final answer
x = 3,998,800.36
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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.