Finding the Fourth Proportional to 118,187,795.12, 161,916,523.38 and 113,768,128.94
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Solution
The fourth proportional to 118,187,795.12, 161,916,523.38 and 113,768,128.94 is: 155,861,608.98
Step by Step Solution
- Step 1: Write the proportion equation
118,187,795.12 : 161,916,523.38 = 113,768,128.94 : x - Step 2: Convert to fraction form
118,187,795.12/161,916,523.38 = 113,768,128.94/x - Step 3: Cross multiply
118,187,795.12x = 161,916,523.38 × 113,768,128.94 - Step 4: Simplify right side
118,187,795.12x = 18,420,939,909,412,364 - Step 5: Solve for x
x = 18,420,939,909,412,364/118,187,795.12 - Step 6: Final answer
x = 155,861,608.98
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.