Finding the Fourth Proportional to 38,839,591.94, 53,598,750.54 and 21,198,657.02
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Solution
The fourth proportional to 38,839,591.94, 53,598,750.54 and 21,198,657.02 is: 29,254,208.72
Step by Step Solution
- Step 1: Write the proportion equation
38,839,591.94 : 53,598,750.54 = 21,198,657.02 : x - Step 2: Convert to fraction form
38,839,591.94/53,598,750.54 = 21,198,657.02/x - Step 3: Cross multiply
38,839,591.94x = 53,598,750.54 × 21,198,657.02 - Step 4: Simplify right side
38,839,591.94x = 1,136,221,529,397,999.75 - Step 5: Solve for x
x = 1,136,221,529,397,999.75/38,839,591.94 - Step 6: Final answer
x = 29,254,208.72
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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.