Finding the Fourth Proportional to 996,420,961.80, 1,494,631,442.70 and 996,420,961.80
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Solution
The fourth proportional to 996,420,961.80, 1,494,631,442.70 and 996,420,961.80 is: 1,494,631,442.70
Step by Step Solution
- Step 1: Write the proportion equation
996,420,961.80 : 1,494,631,442.70 = 996,420,961.80 : x - Step 2: Convert to fraction form
996,420,961.80/1,494,631,442.70 = 996,420,961.80/x - Step 3: Cross multiply
996,420,961.80x = 1,494,631,442.70 × 996,420,961.80 - Step 4: Simplify right side
996,420,961.80x = 1,489,282,099,671,655,680 - Step 5: Solve for x
x = 1,489,282,099,671,655,680/996,420,961.80 - Step 6: Final answer
x = 1,494,631,442.70
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1.5x scale
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.