Finding the Fourth Proportional to 499,879,324.34, 689,780,951.25 and 276,855,163.46
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Solution
The fourth proportional to 499,879,324.34, 689,780,951.25 and 276,855,163.46 is: 382,031,039.72
Step by Step Solution
- Step 1: Write the proportion equation
499,879,324.34 : 689,780,951.25 = 276,855,163.46 : x - Step 2: Convert to fraction form
499,879,324.34/689,780,951.25 = 276,855,163.46/x - Step 3: Cross multiply
499,879,324.34x = 689,780,951.25 × 276,855,163.46 - Step 4: Simplify right side
499,879,324.34x = 190,969,418,009,913,024 - Step 5: Solve for x
x = 190,969,418,009,913,024/499,879,324.34 - Step 6: Final answer
x = 382,031,039.72
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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.