Finding the Fourth Proportional to 454,145,207.80, 681,217,811.70 and 263,042,231.80
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Solution
The fourth proportional to 454,145,207.80, 681,217,811.70 and 263,042,231.80 is: 394,563,347.70
Step by Step Solution
- Step 1: Write the proportion equation
454,145,207.80 : 681,217,811.70 = 263,042,231.80 : x - Step 2: Convert to fraction form
454,145,207.80/681,217,811.70 = 263,042,231.80/x - Step 3: Cross multiply
454,145,207.80x = 681,217,811.70 × 263,042,231.80 - Step 4: Simplify right side
454,145,207.80x = 179,189,053,531,480,160 - Step 5: Solve for x
x = 179,189,053,531,480,160/454,145,207.80 - Step 6: Final answer
x = 394,563,347.70
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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.