Finding the Fourth Proportional to 121,997,234.35, 168,075,230.14 and 84,284,270.09
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Solution
The fourth proportional to 121,997,234.35, 168,075,230.14 and 84,284,270.09 is: 116,118,190.46
Step by Step Solution
- Step 1: Write the proportion equation
121,997,234.35 : 168,075,230.14 = 84,284,270.09 : x - Step 2: Convert to fraction form
121,997,234.35/168,075,230.14 = 84,284,270.09/x - Step 3: Cross multiply
121,997,234.35x = 168,075,230.14 × 84,284,270.09 - Step 4: Simplify right side
121,997,234.35x = 14,166,098,093,398,850 - Step 5: Solve for x
x = 14,166,098,093,398,850/121,997,234.35 - Step 6: Final answer
x = 116,118,190.46
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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.