Finding the Fourth Proportional to 349,170,129.43, 481,674,452.31 and 216,960,894.65
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Solution
The fourth proportional to 349,170,129.43, 481,674,452.31 and 216,960,894.65 is: 299,293,986.79
Step by Step Solution
- Step 1: Write the proportion equation
349,170,129.43 : 481,674,452.31 = 216,960,894.65 : x - Step 2: Convert to fraction form
349,170,129.43/481,674,452.31 = 216,960,894.65/x - Step 3: Cross multiply
349,170,129.43x = 481,674,452.31 × 216,960,894.65 - Step 4: Simplify right side
349,170,129.43x = 104,504,520,104,430,544 - Step 5: Solve for x
x = 104,504,520,104,430,544/349,170,129.43 - Step 6: Final answer
x = 299,293,986.79
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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.