Finding the Fourth Proportional to 18,404,910.90, 27,607,107.15 and 8,307,515.70
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Solution
The fourth proportional to 18,404,910.90, 27,607,107.15 and 8,307,515.70 is: 12,461,156.55
Step by Step Solution
- Step 1: Write the proportion equation
18,404,910.90 : 27,607,107.15 = 8,307,515.70 : x - Step 2: Convert to fraction form
18,404,910.90/27,607,107.15 = 8,307,515.70/x - Step 3: Cross multiply
18,404,910.90x = 27,607,107.15 × 8,307,515.70 - Step 4: Simplify right side
18,404,910.90x = 229,346,476,080,207.25 - Step 5: Solve for x
x = 229,346,476,080,207.25/18,404,910.90 - Step 6: Final answer
x = 12,461,156.55
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1.5x scale
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.