Finding the Fourth Proportional to 1,680,439,625.70, 2,520,659,438.55 and 1,189,707,006.30
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Solution
The fourth proportional to 1,680,439,625.70, 2,520,659,438.55 and 1,189,707,006.30 is: 1,784,560,509.45
Step by Step Solution
- Step 1: Write the proportion equation
1,680,439,625.70 : 2,520,659,438.55 = 1,189,707,006.30 : x - Step 2: Convert to fraction form
1,680,439,625.70/2,520,659,438.55 = 1,189,707,006.30/x - Step 3: Cross multiply
1,680,439,625.70x = 2,520,659,438.55 × 1,189,707,006.30 - Step 4: Simplify right side
1,680,439,625.70x = 2,998,846,194,539,159,552 - Step 5: Solve for x
x = 2,998,846,194,539,159,552/1,680,439,625.70 - Step 6: Final answer
x = 1,784,560,509.45
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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.