Finding the Fourth Proportional to 76,801,918.97, 115,202,989.33 and 31,363,713.47
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Solution
The fourth proportional to 76,801,918.97, 115,202,989.33 and 31,363,713.47 is: 47,045,615.48
Step by Step Solution
- Step 1: Write the proportion equation
76,801,918.97 : 115,202,989.33 = 31,363,713.47 : x - Step 2: Convert to fraction form
76,801,918.97/115,202,989.33 = 31,363,713.47/x - Step 3: Cross multiply
76,801,918.97x = 115,202,989.33 × 31,363,713.47 - Step 4: Simplify right side
76,801,918.97x = 3,613,193,548,443,185.50 - Step 5: Solve for x
x = 3,613,193,548,443,185.50/76,801,918.97 - Step 6: Final answer
x = 47,045,615.48
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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.