Finding the Fourth Proportional to 18,135,281.97, 27,213,551.78 and 13,012,190.73
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Solution
The fourth proportional to 18,135,281.97, 27,213,551.78 and 13,012,190.73 is: 19,525,912.35
Step by Step Solution
- Step 1: Write the proportion equation
18,135,281.97 : 27,213,551.78 = 13,012,190.73 : x - Step 2: Convert to fraction form
18,135,281.97/27,213,551.78 = 13,012,190.73/x - Step 3: Cross multiply
18,135,281.97x = 27,213,551.78 × 13,012,190.73 - Step 4: Simplify right side
18,135,281.97x = 354,107,926,137,030.06 - Step 5: Solve for x
x = 354,107,926,137,030.06/18,135,281.97 - Step 6: Final answer
x = 19,525,912.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.