Finding the Fourth Proportional to 13,214,044.88, 18,235,158.18 and 7,412,702.06
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Solution
The fourth proportional to 13,214,044.88, 18,235,158.18 and 7,412,702.06 is: 10,229,403.32
Step by Step Solution
- Step 1: Write the proportion equation
13,214,044.88 : 18,235,158.18 = 7,412,702.06 : x - Step 2: Convert to fraction form
13,214,044.88/18,235,158.18 = 7,412,702.06/x - Step 3: Cross multiply
13,214,044.88x = 18,235,158.18 × 7,412,702.06 - Step 4: Simplify right side
13,214,044.88x = 135,171,794,514,136.05 - Step 5: Solve for x
x = 135,171,794,514,136.05/13,214,044.88 - Step 6: Final answer
x = 10,229,403.32
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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.