Finding the Fourth Proportional to 321,896,890.20, 482,845,335.30 and 117,431,635.80
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Solution
The fourth proportional to 321,896,890.20, 482,845,335.30 and 117,431,635.80 is: 176,147,453.70
Step by Step Solution
- Step 1: Write the proportion equation
321,896,890.20 : 482,845,335.30 = 117,431,635.80 : x - Step 2: Convert to fraction form
321,896,890.20/482,845,335.30 = 117,431,635.80/x - Step 3: Cross multiply
321,896,890.20x = 482,845,335.30 × 117,431,635.80 - Step 4: Simplify right side
321,896,890.20x = 56,701,317,562,678,480 - Step 5: Solve for x
x = 56,701,317,562,678,480/321,896,890.20 - Step 6: Final answer
x = 176,147,453.70
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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.