Finding the Fourth Proportional to 3,985,493.12, 5,500,101.68 and 2,266,860.80
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Solution
The fourth proportional to 3,985,493.12, 5,500,101.68 and 2,266,860.80 is: 3,128,336.83
Step by Step Solution
- Step 1: Write the proportion equation
3,985,493.12 : 5,500,101.68 = 2,266,860.80 : x - Step 2: Convert to fraction form
3,985,493.12/5,500,101.68 = 2,266,860.80/x - Step 3: Cross multiply
3,985,493.12x = 5,500,101.68 × 2,266,860.80 - Step 4: Simplify right side
3,985,493.12x = 12,467,964,894,406.14 - Step 5: Solve for x
x = 12,467,964,894,406.14/3,985,493.12 - Step 6: Final answer
x = 3,128,336.83
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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.