Finding the Fourth Proportional to 456,239,623.68, 684,086,137.20 and 145,212,892.56
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Solution
The fourth proportional to 456,239,623.68, 684,086,137.20 and 145,212,892.56 is: 217,732,352.88
Step by Step Solution
- Step 1: Write the proportion equation
456,239,623.68 : 684,086,137.20 = 145,212,892.56 : x - Step 2: Convert to fraction form
456,239,623.68/684,086,137.20 = 145,212,892.56/x - Step 3: Cross multiply
456,239,623.68x = 684,086,137.20 × 145,212,892.56 - Step 4: Simplify right side
456,239,623.68x = 99,338,126,743,009,024 - Step 5: Solve for x
x = 99,338,126,743,009,024/456,239,623.68 - Step 6: Final answer
x = 217,732,352.88
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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.