Finding the Fourth Proportional to 12,143,352.08, 16,757,842.20 and 6,986,610.20
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Solution
The fourth proportional to 12,143,352.08, 16,757,842.20 and 6,986,610.20 is: 9,641,531.47
Step by Step Solution
- Step 1: Write the proportion equation
12,143,352.08 : 16,757,842.20 = 6,986,610.20 : x - Step 2: Convert to fraction form
12,143,352.08/16,757,842.20 = 6,986,610.20/x - Step 3: Cross multiply
12,143,352.08x = 16,757,842.20 × 6,986,610.20 - Step 4: Simplify right side
12,143,352.08x = 117,080,511,244,510.44 - Step 5: Solve for x
x = 117,080,511,244,510.44/12,143,352.08 - Step 6: Final answer
x = 9,641,531.47
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1.5x scale
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.