Finding the Fourth Proportional to 13,702,408.56, 18,909,620.37 and 7,507,906.02
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Solution
The fourth proportional to 13,702,408.56, 18,909,620.37 and 7,507,906.02 is: 10,361,072.80
Step by Step Solution
- Step 1: Write the proportion equation
13,702,408.56 : 18,909,620.37 = 7,507,906.02 : x - Step 2: Convert to fraction form
13,702,408.56/18,909,620.37 = 7,507,906.02/x - Step 3: Cross multiply
13,702,408.56x = 18,909,620.37 × 7,507,906.02 - Step 4: Simplify right side
13,702,408.56x = 141,971,652,611,837.62 - Step 5: Solve for x
x = 141,971,652,611,837.62/13,702,408.56 - Step 6: Final answer
x = 10,361,072.80
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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.