Finding the Fourth Proportional to 18,695,928.30, 27,986,425.79 and 15,937,826.40
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Solution
The fourth proportional to 18,695,928.30, 27,986,425.79 and 15,937,826.40 is: 23,857,750.66
Step by Step Solution
- Step 1: Write the proportion equation
18,695,928.30 : 27,986,425.79 = 15,937,826.40 : x - Step 2: Convert to fraction form
18,695,928.30/27,986,425.79 = 15,937,826.40/x - Step 3: Cross multiply
18,695,928.30x = 27,986,425.79 × 15,937,826.40 - Step 4: Simplify right side
18,695,928.30x = 446,042,795,768,410.88 - Step 5: Solve for x
x = 446,042,795,768,410.88/18,695,928.30 - Step 6: Final answer
x = 23,857,750.66
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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.