Finding the Fourth Proportional to 220,939,995.97, 331,034,950.45 and 133,317,389.58
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Solution
The fourth proportional to 220,939,995.97, 331,034,950.45 and 133,317,389.58 is: 199,749,779.39
Step by Step Solution
- Step 1: Write the proportion equation
220,939,995.97 : 331,034,950.45 = 133,317,389.58 : x - Step 2: Convert to fraction form
220,939,995.97/331,034,950.45 = 133,317,389.58/x - Step 3: Cross multiply
220,939,995.97x = 331,034,950.45 × 133,317,389.58 - Step 4: Simplify right side
220,939,995.97x = 44,132,715,453,738,648 - Step 5: Solve for x
x = 44,132,715,453,738,648/220,939,995.97 - Step 6: Final answer
x = 199,749,779.39
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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.