Finding the Fourth Proportional to 133,020,243.90, 199,596,721.05 and 75,556,640.70
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Solution
The fourth proportional to 133,020,243.90, 199,596,721.05 and 75,556,640.70 is: 113,372,651.37
Step by Step Solution
- Step 1: Write the proportion equation
133,020,243.90 : 199,596,721.05 = 75,556,640.70 : x - Step 2: Convert to fraction form
133,020,243.90/199,596,721.05 = 75,556,640.70/x - Step 3: Cross multiply
133,020,243.90x = 199,596,721.05 × 75,556,640.70 - Step 4: Simplify right side
133,020,243.90x = 15,080,857,737,272,978 - Step 5: Solve for x
x = 15,080,857,737,272,978/133,020,243.90 - Step 6: Final answer
x = 113,372,651.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.