Finding the Fourth Proportional to 85,115,728.96, 127,691,526.64 and 27,603,515.68
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Solution
The fourth proportional to 85,115,728.96, 127,691,526.64 and 27,603,515.68 is: 41,411,089.36
Step by Step Solution
- Step 1: Write the proportion equation
85,115,728.96 : 127,691,526.64 = 27,603,515.68 : x - Step 2: Convert to fraction form
85,115,728.96/127,691,526.64 = 27,603,515.68/x - Step 3: Cross multiply
85,115,728.96x = 127,691,526.64 × 27,603,515.68 - Step 4: Simplify right side
85,115,728.96x = 3,524,735,057,810,377.50 - Step 5: Solve for x
x = 3,524,735,057,810,377.50/85,115,728.96 - Step 6: Final answer
x = 41,411,089.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.