Finding the Fourth Proportional to 15,757,099.68, 21,746,469.24 and 9,236,207.88
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Solution
The fourth proportional to 15,757,099.68, 21,746,469.24 and 9,236,207.88 is: 12,746,946.75
Step by Step Solution
- Step 1: Write the proportion equation
15,757,099.68 : 21,746,469.24 = 9,236,207.88 : x - Step 2: Convert to fraction form
15,757,099.68/21,746,469.24 = 9,236,207.88/x - Step 3: Cross multiply
15,757,099.68x = 21,746,469.24 × 9,236,207.88 - Step 4: Simplify right side
15,757,099.68x = 200,854,910,556,665.62 - Step 5: Solve for x
x = 200,854,910,556,665.62/15,757,099.68 - Step 6: Final answer
x = 12,746,946.75
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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.