Finding the Fourth Proportional to 137,824,449.12, 206,541,811.71 and 76,440,651.66
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Solution
The fourth proportional to 137,824,449.12, 206,541,811.71 and 76,440,651.66 is: 114,552,902.50
Step by Step Solution
- Step 1: Write the proportion equation
137,824,449.12 : 206,541,811.71 = 76,440,651.66 : x - Step 2: Convert to fraction form
137,824,449.12/206,541,811.71 = 76,440,651.66/x - Step 3: Cross multiply
137,824,449.12x = 206,541,811.71 × 76,440,651.66 - Step 4: Simplify right side
137,824,449.12x = 15,788,190,682,149,418 - Step 5: Solve for x
x = 15,788,190,682,149,418/137,824,449.12 - Step 6: Final answer
x = 114,552,902.50
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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.