Finding the Fourth Proportional to 129,295,231.76, 178,431,209.73 and 70,561,673.26
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Solution
The fourth proportional to 129,295,231.76, 178,431,209.73 and 70,561,673.26 is: 97,377,177.40
Step by Step Solution
- Step 1: Write the proportion equation
129,295,231.76 : 178,431,209.73 = 70,561,673.26 : x - Step 2: Convert to fraction form
129,295,231.76/178,431,209.73 = 70,561,673.26/x - Step 3: Cross multiply
129,295,231.76x = 178,431,209.73 × 70,561,673.26 - Step 4: Simplify right side
129,295,231.76x = 12,590,404,720,354,794 - Step 5: Solve for x
x = 12,590,404,720,354,794/129,295,231.76 - Step 6: Final answer
x = 97,377,177.40
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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.