Finding the Fourth Proportional to 140,902,412.33, 194,446,905.41 and 78,179,645.99
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Solution
The fourth proportional to 140,902,412.33, 194,446,905.41 and 78,179,645.99 is: 107,888,786.13
Step by Step Solution
- Step 1: Write the proportion equation
140,902,412.33 : 194,446,905.41 = 78,179,645.99 : x - Step 2: Convert to fraction form
140,902,412.33/194,446,905.41 = 78,179,645.99/x - Step 3: Cross multiply
140,902,412.33x = 194,446,905.41 × 78,179,645.99 - Step 4: Simplify right side
140,902,412.33x = 15,201,790,228,804,814 - Step 5: Solve for x
x = 15,201,790,228,804,814/140,902,412.33 - Step 6: Final answer
x = 107,888,786.13
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.