Finding the Fourth Proportional to 12,849,720.48, 17,729,640.72 and 7,691,122.08
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Solution
The fourth proportional to 12,849,720.48, 17,729,640.72 and 7,691,122.08 is: 10,611,968.67
Step by Step Solution
- Step 1: Write the proportion equation
12,849,720.48 : 17,729,640.72 = 7,691,122.08 : x - Step 2: Convert to fraction form
12,849,720.48/17,729,640.72 = 7,691,122.08/x - Step 3: Cross multiply
12,849,720.48x = 17,729,640.72 × 7,691,122.08 - Step 4: Simplify right side
12,849,720.48x = 136,360,831,212,059.09 - Step 5: Solve for x
x = 136,360,831,212,059.09/12,849,720.48 - Step 6: Final answer
x = 10,611,968.67
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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.