Finding the Fourth Proportional to 77,279,047.70, 115,918,571.55 and 41,447,239.70
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Solution
The fourth proportional to 77,279,047.70, 115,918,571.55 and 41,447,239.70 is: 62,170,859.55
Step by Step Solution
- Step 1: Write the proportion equation
77,279,047.70 : 115,918,571.55 = 41,447,239.70 : x - Step 2: Convert to fraction form
77,279,047.70/115,918,571.55 = 41,447,239.70/x - Step 3: Cross multiply
77,279,047.70x = 115,918,571.55 × 41,447,239.70 - Step 4: Simplify right side
77,279,047.70x = 4,804,504,820,714,451 - Step 5: Solve for x
x = 4,804,504,820,714,451/77,279,047.70 - Step 6: Final answer
x = 62,170,859.55
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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.