Finding the Fourth Proportional to 479,161,715.84, 661,243,162.74 and 259,145,141.84
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Solution
The fourth proportional to 479,161,715.84, 661,243,162.74 and 259,145,141.84 is: 357,620,292.97
Step by Step Solution
- Step 1: Write the proportion equation
479,161,715.84 : 661,243,162.74 = 259,145,141.84 : x - Step 2: Convert to fraction form
479,161,715.84/661,243,162.74 = 259,145,141.84/x - Step 3: Cross multiply
479,161,715.84x = 661,243,162.74 × 259,145,141.84 - Step 4: Simplify right side
479,161,715.84x = 171,357,953,198,987,520 - Step 5: Solve for x
x = 171,357,953,198,987,520/479,161,715.84 - Step 6: Final answer
x = 357,620,292.97
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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.