Finding the Fourth Proportional to 15,985,542.38, 22,060,573.36 and 8,742,198.38
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Solution
The fourth proportional to 15,985,542.38, 22,060,573.36 and 8,742,198.38 is: 12,064,520.80
Step by Step Solution
- Step 1: Write the proportion equation
15,985,542.38 : 22,060,573.36 = 8,742,198.38 : x - Step 2: Convert to fraction form
15,985,542.38/22,060,573.36 = 8,742,198.38/x - Step 3: Cross multiply
15,985,542.38x = 22,060,573.36 × 8,742,198.38 - Step 4: Simplify right side
15,985,542.38x = 192,857,908,557,504.81 - Step 5: Solve for x
x = 192,857,908,557,504.81/15,985,542.38 - Step 6: Final answer
x = 12,064,520.80
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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.