Finding the Fourth Proportional to 67,756,872.20, 101,467,346.70 and 54,319,944.20
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Solution
The fourth proportional to 67,756,872.20, 101,467,346.70 and 54,319,944.20 is: 81,345,263.32
Step by Step Solution
- Step 1: Write the proportion equation
67,756,872.20 : 101,467,346.70 = 54,319,944.20 : x - Step 2: Convert to fraction form
67,756,872.20/101,467,346.70 = 54,319,944.20/x - Step 3: Cross multiply
67,756,872.20x = 101,467,346.70 × 54,319,944.20 - Step 4: Simplify right side
67,756,872.20x = 5,511,700,610,866,055 - Step 5: Solve for x
x = 5,511,700,610,866,055/67,756,872.20 - Step 6: Final answer
x = 81,345,263.32
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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.