Finding the Fourth Proportional to 18,442,418.40, 27,680,358.15 and 9,350,840.70
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Solution
The fourth proportional to 18,442,418.40, 27,680,358.15 and 9,350,840.70 is: 14,034,743.92
Step by Step Solution
- Step 1: Write the proportion equation
18,442,418.40 : 27,680,358.15 = 9,350,840.70 : x - Step 2: Convert to fraction form
18,442,418.40/27,680,358.15 = 9,350,840.70/x - Step 3: Cross multiply
18,442,418.40x = 27,680,358.15 × 9,350,840.70 - Step 4: Simplify right side
18,442,418.40x = 258,834,619,579,596.66 - Step 5: Solve for x
x = 258,834,619,579,596.66/18,442,418.40 - Step 6: Final answer
x = 14,034,743.92
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1.5x scale
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.