Finding the Fourth Proportional to 57,291,604.74, 79,063,422.57 and 31,186,872.90
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Solution
The fourth proportional to 57,291,604.74, 79,063,422.57 and 31,186,872.90 is: 43,038,433.33
Step by Step Solution
- Step 1: Write the proportion equation
57,291,604.74 : 79,063,422.57 = 31,186,872.90 : x - Step 2: Convert to fraction form
57,291,604.74/79,063,422.57 = 31,186,872.90/x - Step 3: Cross multiply
57,291,604.74x = 79,063,422.57 × 31,186,872.90 - Step 4: Simplify right side
57,291,604.74x = 2,465,740,910,729,581 - Step 5: Solve for x
x = 2,465,740,910,729,581/57,291,604.74 - Step 6: Final answer
x = 43,038,433.33
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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.