Finding the Fourth Proportional to 21,367,418.25, 29,487,063.11 and 11,577,854.85
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Solution
The fourth proportional to 21,367,418.25, 29,487,063.11 and 11,577,854.85 is: 15,977,453.74
Step by Step Solution
- Step 1: Write the proportion equation
21,367,418.25 : 29,487,063.11 = 11,577,854.85 : x - Step 2: Convert to fraction form
21,367,418.25/29,487,063.11 = 11,577,854.85/x - Step 3: Cross multiply
21,367,418.25x = 29,487,063.11 × 11,577,854.85 - Step 4: Simplify right side
21,367,418.25x = 341,396,936,582,480.31 - Step 5: Solve for x
x = 341,396,936,582,480.31/21,367,418.25 - Step 6: Final answer
x = 15,977,453.74
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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.