Finding the Fourth Proportional to 144,469,893.94, 199,358,638.75 and 79,283,996.98
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Solution
The fourth proportional to 144,469,893.94, 199,358,638.75 and 79,283,996.98 is: 109,406,529.50
Step by Step Solution
- Step 1: Write the proportion equation
144,469,893.94 : 199,358,638.75 = 79,283,996.98 : x - Step 2: Convert to fraction form
144,469,893.94/199,358,638.75 = 79,283,996.98/x - Step 3: Cross multiply
144,469,893.94x = 199,358,638.75 × 79,283,996.98 - Step 4: Simplify right side
144,469,893.94x = 15,805,949,712,591,912 - Step 5: Solve for x
x = 15,805,949,712,591,912/144,469,893.94 - Step 6: Final answer
x = 109,406,529.50
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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.