Finding the Fourth Proportional to 81,203,622.10, 121,805,433.15 and 48,918,581.35
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Solution
The fourth proportional to 81,203,622.10, 121,805,433.15 and 48,918,581.35 is: 73,377,872.03
Step by Step Solution
- Step 1: Write the proportion equation
81,203,622.10 : 121,805,433.15 = 48,918,581.35 : x - Step 2: Convert to fraction form
81,203,622.10/121,805,433.15 = 48,918,581.35/x - Step 3: Cross multiply
81,203,622.10x = 121,805,433.15 × 48,918,581.35 - Step 4: Simplify right side
81,203,622.10x = 5,958,548,990,420,262 - Step 5: Solve for x
x = 5,958,548,990,420,262/81,203,622.10 - Step 6: Final answer
x = 73,377,872.03
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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.