Finding the Fourth Proportional to 221,920,352.30, 311,368,737.70 and 221,920,352.30
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Solution
The fourth proportional to 221,920,352.30, 311,368,737.70 and 221,920,352.30 is: 311,368,737.70
Step by Step Solution
- Step 1: Write the proportion equation
221,920,352.30 : 311,368,737.70 = 221,920,352.30 : x - Step 2: Convert to fraction form
221,920,352.30/311,368,737.70 = 221,920,352.30/x - Step 3: Cross multiply
221,920,352.30x = 311,368,737.70 × 221,920,352.30 - Step 4: Simplify right side
221,920,352.30x = 69,099,059,965,590,296 - Step 5: Solve for x
x = 69,099,059,965,590,296/221,920,352.30 - Step 6: Final answer
x = 311,368,737.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.