Finding the Fourth Proportional to 168,039,437.80, 252,059,156.70 and 40,388,621.80
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Solution
The fourth proportional to 168,039,437.80, 252,059,156.70 and 40,388,621.80 is: 60,582,932.70
Step by Step Solution
- Step 1: Write the proportion equation
168,039,437.80 : 252,059,156.70 = 40,388,621.80 : x - Step 2: Convert to fraction form
168,039,437.80/252,059,156.70 = 40,388,621.80/x - Step 3: Cross multiply
168,039,437.80x = 252,059,156.70 × 40,388,621.80 - Step 4: Simplify right side
168,039,437.80x = 10,180,321,951,183,234 - Step 5: Solve for x
x = 10,180,321,951,183,234/168,039,437.80 - Step 6: Final answer
x = 60,582,932.70
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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.