Finding the Fourth Proportional to 71,945,687.70, 107,918,531.55 and 59,348,567.70
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Solution
The fourth proportional to 71,945,687.70, 107,918,531.55 and 59,348,567.70 is: 89,022,851.55
Step by Step Solution
- Step 1: Write the proportion equation
71,945,687.70 : 107,918,531.55 = 59,348,567.70 : x - Step 2: Convert to fraction form
71,945,687.70/107,918,531.55 = 59,348,567.70/x - Step 3: Cross multiply
71,945,687.70x = 107,918,531.55 × 59,348,567.70 - Step 4: Simplify right side
71,945,687.70x = 6,404,810,275,779,761 - Step 5: Solve for x
x = 6,404,810,275,779,761/71,945,687.70 - Step 6: Final answer
x = 89,022,851.55
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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.