Finding the Fourth Proportional to 11,167,209.60, 16,750,814.40 and 4,778,107.80
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Solution
The fourth proportional to 11,167,209.60, 16,750,814.40 and 4,778,107.80 is: 7,167,161.70
Step by Step Solution
- Step 1: Write the proportion equation
11,167,209.60 : 16,750,814.40 = 4,778,107.80 : x - Step 2: Convert to fraction form
11,167,209.60/16,750,814.40 = 4,778,107.80/x - Step 3: Cross multiply
11,167,209.60x = 16,750,814.40 × 4,778,107.80 - Step 4: Simplify right side
11,167,209.60x = 80,037,196,940,992.31 - Step 5: Solve for x
x = 80,037,196,940,992.31/11,167,209.60 - Step 6: Final answer
x = 7,167,161.70
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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.