Finding the Fourth Proportional to 258,282,107.20, 387,424,560.48 and 76,530,859.84
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Solution
The fourth proportional to 258,282,107.20, 387,424,560.48 and 76,530,859.84 is: 114,796,704.50
Step by Step Solution
- Step 1: Write the proportion equation
258,282,107.20 : 387,424,560.48 = 76,530,859.84 : x - Step 2: Convert to fraction form
258,282,107.20/387,424,560.48 = 76,530,859.84/x - Step 3: Cross multiply
258,282,107.20x = 387,424,560.48 × 76,530,859.84 - Step 4: Simplify right side
258,282,107.20x = 29,649,934,736,668,484 - Step 5: Solve for x
x = 29,649,934,736,668,484/258,282,107.20 - Step 6: Final answer
x = 114,796,704.50
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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.