Finding the Fourth Proportional to 3,692,912.89, 5,097,070.09 and 2,165,512.09
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Solution
The fourth proportional to 3,692,912.89, 5,097,070.09 and 2,165,512.09 is: 2,988,905.30
Step by Step Solution
- Step 1: Write the proportion equation
3,692,912.89 : 5,097,070.09 = 2,165,512.09 : x - Step 2: Convert to fraction form
3,692,912.89/5,097,070.09 = 2,165,512.09/x - Step 3: Cross multiply
3,692,912.89x = 5,097,070.09 × 2,165,512.09 - Step 4: Simplify right side
3,692,912.89x = 11,037,766,877,987.04 - Step 5: Solve for x
x = 11,037,766,877,987.04/3,692,912.89 - Step 6: Final answer
x = 2,988,905.30
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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.