Finding the Fourth Proportional to 259,524,234.70, 389,286,352.05 and 77,747,793.10
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Solution
The fourth proportional to 259,524,234.70, 389,286,352.05 and 77,747,793.10 is: 116,621,689.65
Step by Step Solution
- Step 1: Write the proportion equation
259,524,234.70 : 389,286,352.05 = 77,747,793.10 : x - Step 2: Convert to fraction form
259,524,234.70/389,286,352.05 = 77,747,793.10/x - Step 3: Cross multiply
259,524,234.70x = 389,286,352.05 × 77,747,793.10 - Step 4: Simplify right side
259,524,234.70x = 30,266,154,755,837,160 - Step 5: Solve for x
x = 30,266,154,755,837,160/259,524,234.70 - Step 6: Final answer
x = 116,621,689.65
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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.