Finding the Fourth Proportional to 137,812,711,907.70, 206,719,067,861.55 and 115,772,790,755.70
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Solution
The fourth proportional to 137,812,711,907.70, 206,719,067,861.55 and 115,772,790,755.70 is: 173,659,186,133.55
Step by Step Solution
- Step 1: Write the proportion equation
137,812,711,907.70 : 206,719,067,861.55 = 115,772,790,755.70 : x - Step 2: Convert to fraction form
137,812,711,907.70/206,719,067,861.55 = 115,772,790,755.70/x - Step 3: Cross multiply
137,812,711,907.70x = 206,719,067,861.55 × 115,772,790,755.70 - Step 4: Simplify right side
137,812,711,907.70x = 23,932,443,388,748,576,587,776 - Step 5: Solve for x
x = 23,932,443,388,748,576,587,776/137,812,711,907.70 - Step 6: Final answer
x = 173,659,186,133.55
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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.