Finding the Fourth Proportional to 11,104,013.60, 16,656,020.40 and 8,581,479.20
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Solution
The fourth proportional to 11,104,013.60, 16,656,020.40 and 8,581,479.20 is: 12,872,218.80
Step by Step Solution
- Step 1: Write the proportion equation
11,104,013.60 : 16,656,020.40 = 8,581,479.20 : x - Step 2: Convert to fraction form
11,104,013.60/16,656,020.40 = 8,581,479.20/x - Step 3: Cross multiply
11,104,013.60x = 16,656,020.40 × 8,581,479.20 - Step 4: Simplify right side
11,104,013.60x = 142,933,292,617,375.66 - Step 5: Solve for x
x = 142,933,292,617,375.66/11,104,013.60 - Step 6: Final answer
x = 12,872,218.80
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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.