Finding the Fourth Proportional to 2,511,399,115.20, 3,767,098,672.80 and 764,587,977.60
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Solution
The fourth proportional to 2,511,399,115.20, 3,767,098,672.80 and 764,587,977.60 is: 1,146,881,966.40
Step by Step Solution
- Step 1: Write the proportion equation
2,511,399,115.20 : 3,767,098,672.80 = 764,587,977.60 : x - Step 2: Convert to fraction form
2,511,399,115.20/3,767,098,672.80 = 764,587,977.60/x - Step 3: Cross multiply
2,511,399,115.20x = 3,767,098,672.80 × 764,587,977.60 - Step 4: Simplify right side
2,511,399,115.20x = 2,880,278,355,655,796,224 - Step 5: Solve for x
x = 2,880,278,355,655,796,224/2,511,399,115.20 - Step 6: Final answer
x = 1,146,881,966.40
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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.