Finding the Fourth Proportional to 770,311,680.38, 1,062,940,437.98 and 431,238,722.99
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Solution
The fourth proportional to 770,311,680.38, 1,062,940,437.98 and 431,238,722.99 is: 595,059,232.20
Step by Step Solution
- Step 1: Write the proportion equation
770,311,680.38 : 1,062,940,437.98 = 431,238,722.99 : x - Step 2: Convert to fraction form
770,311,680.38/1,062,940,437.98 = 431,238,722.99/x - Step 3: Cross multiply
770,311,680.38x = 1,062,940,437.98 × 431,238,722.99 - Step 4: Simplify right side
770,311,680.38x = 458,381,077,081,455,616 - Step 5: Solve for x
x = 458,381,077,081,455,616/770,311,680.38 - Step 6: Final answer
x = 595,059,232.20
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1.5x scale
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.