Finding the Fourth Proportional to 1,093,068,156.10, 1,639,602,234.15 and 987,630,261.70
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Solution
The fourth proportional to 1,093,068,156.10, 1,639,602,234.15 and 987,630,261.70 is: 1,481,445,392.55
Step by Step Solution
- Step 1: Write the proportion equation
1,093,068,156.10 : 1,639,602,234.15 = 987,630,261.70 : x - Step 2: Convert to fraction form
1,093,068,156.10/1,639,602,234.15 = 987,630,261.70/x - Step 3: Cross multiply
1,093,068,156.10x = 1,639,602,234.15 × 987,630,261.70 - Step 4: Simplify right side
1,093,068,156.10x = 1,619,320,783,597,469,440 - Step 5: Solve for x
x = 1,619,320,783,597,469,440/1,093,068,156.10 - Step 6: Final answer
x = 1,481,445,392.55
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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.