Finding the Fourth Proportional to 21,486,651.20, 32,267,301.60 and 11,408,955.20
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Solution
The fourth proportional to 21,486,651.20, 32,267,301.60 and 11,408,955.20 is: 17,133,251.48
Step by Step Solution
- Step 1: Write the proportion equation
21,486,651.20 : 32,267,301.60 = 11,408,955.20 : x - Step 2: Convert to fraction form
21,486,651.20/32,267,301.60 = 11,408,955.20/x - Step 3: Cross multiply
21,486,651.20x = 32,267,301.60 × 11,408,955.20 - Step 4: Simplify right side
21,486,651.20x = 368,136,198,379,288.31 - Step 5: Solve for x
x = 368,136,198,379,288.31/21,486,651.20 - Step 6: Final answer
x = 17,133,251.48
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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.