Finding the Fourth Proportional to 193,537,919.70, 290,306,879.55 and 86,042,495.70
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Solution
The fourth proportional to 193,537,919.70, 290,306,879.55 and 86,042,495.70 is: 129,063,743.55
Step by Step Solution
- Step 1: Write the proportion equation
193,537,919.70 : 290,306,879.55 = 86,042,495.70 : x - Step 2: Convert to fraction form
193,537,919.70/290,306,879.55 = 86,042,495.70/x - Step 3: Cross multiply
193,537,919.70x = 290,306,879.55 × 86,042,495.70 - Step 4: Simplify right side
193,537,919.70x = 24,978,728,435,361,296 - Step 5: Solve for x
x = 24,978,728,435,361,296/193,537,919.70 - Step 6: Final answer
x = 129,063,743.55
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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.