Finding the Fourth Proportional to 486,986,874.96, 672,023,882.80 and 263,963,768.09
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Solution
The fourth proportional to 486,986,874.96, 672,023,882.80 and 263,963,768.09 is: 364,260,240.82
Step by Step Solution
- Step 1: Write the proportion equation
486,986,874.96 : 672,023,882.80 = 263,963,768.09 : x - Step 2: Convert to fraction form
486,986,874.96/672,023,882.80 = 263,963,768.09/x - Step 3: Cross multiply
486,986,874.96x = 672,023,882.80 × 263,963,768.09 - Step 4: Simplify right side
486,986,874.96x = 177,389,956,350,360,544 - Step 5: Solve for x
x = 177,389,956,350,360,544/486,986,874.96 - Step 6: Final answer
x = 364,260,240.82
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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.