Finding the Fourth Proportional to 71,919,131.11, 99,224,115.28 and 40,957,378.45
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Solution
The fourth proportional to 71,919,131.11, 99,224,115.28 and 40,957,378.45 is: 56,507,351.77
Step by Step Solution
- Step 1: Write the proportion equation
71,919,131.11 : 99,224,115.28 = 40,957,378.45 : x - Step 2: Convert to fraction form
71,919,131.11/99,224,115.28 = 40,957,378.45/x - Step 3: Cross multiply
71,919,131.11x = 99,224,115.28 × 40,957,378.45 - Step 4: Simplify right side
71,919,131.11x = 4,063,959,640,538,934 - Step 5: Solve for x
x = 4,063,959,640,538,934/71,919,131.11 - Step 6: Final answer
x = 56,507,351.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.