Finding the Fourth Proportional to 19,682,755.20, 29,524,132.80 and 11,587,420.80
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Solution
The fourth proportional to 19,682,755.20, 29,524,132.80 and 11,587,420.80 is: 17,381,131.20
Step by Step Solution
- Step 1: Write the proportion equation
19,682,755.20 : 29,524,132.80 = 11,587,420.80 : x - Step 2: Convert to fraction form
19,682,755.20/29,524,132.80 = 11,587,420.80/x - Step 3: Cross multiply
19,682,755.20x = 29,524,132.80 × 11,587,420.80 - Step 4: Simplify right side
19,682,755.20x = 342,108,550,508,682.25 - Step 5: Solve for x
x = 342,108,550,508,682.25/19,682,755.20 - Step 6: Final answer
x = 17,381,131.20
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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.