Finding the Fourth Proportional to 253,411,453.98, 380,173,167.99 and 91,849,190.94
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Solution
The fourth proportional to 253,411,453.98, 380,173,167.99 and 91,849,190.94 is: 137,794,078.95
Step by Step Solution
- Step 1: Write the proportion equation
253,411,453.98 : 380,173,167.99 = 91,849,190.94 : x - Step 2: Convert to fraction form
253,411,453.98/380,173,167.99 = 91,849,190.94/x - Step 3: Cross multiply
253,411,453.98x = 380,173,167.99 × 91,849,190.94 - Step 4: Simplify right side
253,411,453.98x = 34,918,597,896,978,204 - Step 5: Solve for x
x = 34,918,597,896,978,204/253,411,453.98 - Step 6: Final answer
x = 137,794,078.95
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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.