Finding the Fourth Proportional to 21,652,608.30, 29,880,598.60 and 11,863,423.76
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Solution
The fourth proportional to 21,652,608.30, 29,880,598.60 and 11,863,423.76 is: 16,371,524.32
Step by Step Solution
- Step 1: Write the proportion equation
21,652,608.30 : 29,880,598.60 = 11,863,423.76 : x - Step 2: Convert to fraction form
21,652,608.30/29,880,598.60 = 11,863,423.76/x - Step 3: Cross multiply
21,652,608.30x = 29,880,598.60 × 11,863,423.76 - Step 4: Simplify right side
21,652,608.30x = 354,486,203,394,262.75 - Step 5: Solve for x
x = 354,486,203,394,262.75/21,652,608.30 - Step 6: Final answer
x = 16,371,524.32
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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.