Finding the Fourth Proportional to 13,760,551.99, 18,988,438.62 and 8,101,751.96
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Solution
The fourth proportional to 13,760,551.99, 18,988,438.62 and 8,101,751.96 is: 11,179,756.45
Step by Step Solution
- Step 1: Write the proportion equation
13,760,551.99 : 18,988,438.62 = 8,101,751.96 : x - Step 2: Convert to fraction form
13,760,551.99/18,988,438.62 = 8,101,751.96/x - Step 3: Cross multiply
13,760,551.99x = 18,988,438.62 × 8,101,751.96 - Step 4: Simplify right side
13,760,551.99x = 153,839,619,764,023.66 - Step 5: Solve for x
x = 153,839,619,764,023.66/13,760,551.99 - Step 6: Final answer
x = 11,179,756.45
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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.