Finding the Fourth Proportional to 2,728,122,812.25, 4,092,156,937.62 and 862,768,826.49
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Solution
The fourth proportional to 2,728,122,812.25, 4,092,156,937.62 and 862,768,826.49 is: 1,294,144,612.20
Step by Step Solution
- Step 1: Write the proportion equation
2,728,122,812.25 : 4,092,156,937.62 = 862,768,826.49 : x - Step 2: Convert to fraction form
2,728,122,812.25/4,092,156,937.62 = 862,768,826.49/x - Step 3: Cross multiply
2,728,122,812.25x = 4,092,156,937.62 × 862,768,826.49 - Step 4: Simplify right side
2,728,122,812.25x = 3,530,585,438,898,705,920 - Step 5: Solve for x
x = 3,530,585,438,898,705,920/2,728,122,812.25 - Step 6: Final answer
x = 1,294,144,612.20
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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.