Finding the Fourth Proportional to 316,715,643.14, 436,912,273.22 and 274,840,935.44
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Solution
The fourth proportional to 316,715,643.14, 436,912,273.22 and 274,840,935.44 is: 379,145,711.54
Step by Step Solution
- Step 1: Write the proportion equation
316,715,643.14 : 436,912,273.22 = 274,840,935.44 : x - Step 2: Convert to fraction form
316,715,643.14/436,912,273.22 = 274,840,935.44/x - Step 3: Cross multiply
316,715,643.14x = 436,912,273.22 × 274,840,935.44 - Step 4: Simplify right side
316,715,643.14x = 120,081,377,873,442,896 - Step 5: Solve for x
x = 120,081,377,873,442,896/316,715,643.14 - Step 6: Final answer
x = 379,145,711.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.