Finding the Fourth Proportional to 129,057,207.31, 178,096,703.70 and 70,320,355.09
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Solution
The fourth proportional to 129,057,207.31, 178,096,703.70 and 70,320,355.09 is: 97,040,868.20
Step by Step Solution
- Step 1: Write the proportion equation
129,057,207.31 : 178,096,703.70 = 70,320,355.09 : x - Step 2: Convert to fraction form
129,057,207.31/178,096,703.70 = 70,320,355.09/x - Step 3: Cross multiply
129,057,207.31x = 178,096,703.70 × 70,320,355.09 - Step 4: Simplify right side
129,057,207.31x = 12,523,823,444,360,978 - Step 5: Solve for x
x = 12,523,823,444,360,978/129,057,207.31 - Step 6: Final answer
x = 97,040,868.20
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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.