Finding the Fourth Proportional to 5,571,256.84, 7,685,504.90 and 3,638,648.68
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Solution
The fourth proportional to 5,571,256.84, 7,685,504.90 and 3,638,648.68 is: 5,019,487.17
Step by Step Solution
- Step 1: Write the proportion equation
5,571,256.84 : 7,685,504.90 = 3,638,648.68 : x - Step 2: Convert to fraction form
5,571,256.84/7,685,504.90 = 3,638,648.68/x - Step 3: Cross multiply
5,571,256.84x = 7,685,504.90 × 3,638,648.68 - Step 4: Simplify right side
5,571,256.84x = 27,964,852,236,266.72 - Step 5: Solve for x
x = 27,964,852,236,266.72/5,571,256.84 - Step 6: Final answer
x = 5,019,487.17
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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.