Finding the Fourth Proportional to 21,419,650.97, 29,559,631.95 and 11,630,507.75
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Solution
The fourth proportional to 21,419,650.97, 29,559,631.95 and 11,630,507.75 is: 16,050,379.57
Step by Step Solution
- Step 1: Write the proportion equation
21,419,650.97 : 29,559,631.95 = 11,630,507.75 : x - Step 2: Convert to fraction form
21,419,650.97/29,559,631.95 = 11,630,507.75/x - Step 3: Cross multiply
21,419,650.97x = 29,559,631.95 × 11,630,507.75 - Step 4: Simplify right side
21,419,650.97x = 343,793,528,333,824.44 - Step 5: Solve for x
x = 343,793,528,333,824.44/21,419,650.97 - Step 6: Final answer
x = 16,050,379.57
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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.