Finding the Fourth Proportional to 219,780,133.40, 329,670,200.10 and 207,239,000.60
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Solution
The fourth proportional to 219,780,133.40, 329,670,200.10 and 207,239,000.60 is: 310,858,500.90
Step by Step Solution
- Step 1: Write the proportion equation
219,780,133.40 : 329,670,200.10 = 207,239,000.60 : x - Step 2: Convert to fraction form
219,780,133.40/329,670,200.10 = 207,239,000.60/x - Step 3: Cross multiply
219,780,133.40x = 329,670,200.10 × 207,239,000.60 - Step 4: Simplify right side
219,780,133.40x = 68,320,522,796,326,024 - Step 5: Solve for x
x = 68,320,522,796,326,024/219,780,133.40 - Step 6: Final answer
x = 310,858,500.90
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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.