Finding the Fourth Proportional to 54,086,126.45, 74,638,920.12 and 29,306,293.75
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Solution
The fourth proportional to 54,086,126.45, 74,638,920.12 and 29,306,293.75 is: 40,442,720.92
Step by Step Solution
- Step 1: Write the proportion equation
54,086,126.45 : 74,638,920.12 = 29,306,293.75 : x - Step 2: Convert to fraction form
54,086,126.45/74,638,920.12 = 29,306,293.75/x - Step 3: Cross multiply
54,086,126.45x = 74,638,920.12 × 29,306,293.75 - Step 4: Simplify right side
54,086,126.45x = 2,187,390,117,846,310.75 - Step 5: Solve for x
x = 2,187,390,117,846,310.75/54,086,126.45 - Step 6: Final answer
x = 40,442,720.92
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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.