Finding the Fourth Proportional to 786,050,475.24, 1,178,633,281.94 and 261,138,560.02
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Solution
The fourth proportional to 786,050,475.24, 1,178,633,281.94 and 261,138,560.02 is: 391,560,857.39
Step by Step Solution
- Step 1: Write the proportion equation
786,050,475.24 : 1,178,633,281.94 = 261,138,560.02 : x - Step 2: Convert to fraction form
786,050,475.24/1,178,633,281.94 = 261,138,560.02/x - Step 3: Cross multiply
786,050,475.24x = 1,178,633,281.94 × 261,138,560.02 - Step 4: Simplify right side
786,050,475.24x = 307,786,598,037,458,304 - Step 5: Solve for x
x = 307,786,598,037,458,304/786,050,475.24 - Step 6: Final answer
x = 391,560,857.39
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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.