Finding the Fourth Proportional to 76,801,890.49, 115,202,946.60 and 31,363,684.99
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Solution
The fourth proportional to 76,801,890.49, 115,202,946.60 and 31,363,684.99 is: 47,045,572.76
Step by Step Solution
- Step 1: Write the proportion equation
76,801,890.49 : 115,202,946.60 = 31,363,684.99 : x - Step 2: Convert to fraction form
76,801,890.49/115,202,946.60 = 31,363,684.99/x - Step 3: Cross multiply
76,801,890.49x = 115,202,946.60 × 31,363,684.99 - Step 4: Simplify right side
76,801,890.49x = 3,613,188,927,082,191 - Step 5: Solve for x
x = 3,613,188,927,082,191/76,801,890.49 - Step 6: Final answer
x = 47,045,572.76
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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.