Finding the Fourth Proportional to 220,939,996.47, 331,034,951.21 and 133,317,390.08
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Solution
The fourth proportional to 220,939,996.47, 331,034,951.21 and 133,317,390.08 is: 199,749,780.14
Step by Step Solution
- Step 1: Write the proportion equation
220,939,996.47 : 331,034,951.21 = 133,317,390.08 : x - Step 2: Convert to fraction form
220,939,996.47/331,034,951.21 = 133,317,390.08/x - Step 3: Cross multiply
220,939,996.47x = 331,034,951.21 × 133,317,390.08 - Step 4: Simplify right side
220,939,996.47x = 44,132,715,718,255,576 - Step 5: Solve for x
x = 44,132,715,718,255,576/220,939,996.47 - Step 6: Final answer
x = 199,749,780.14
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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.