Finding the Fourth Proportional to 90,912,431.03, 125,428,035.26 and 51,744,407.99
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Solution
The fourth proportional to 90,912,431.03, 125,428,035.26 and 51,744,407.99 is: 71,389,570.78
Step by Step Solution
- Step 1: Write the proportion equation
90,912,431.03 : 125,428,035.26 = 51,744,407.99 : x - Step 2: Convert to fraction form
90,912,431.03/125,428,035.26 = 51,744,407.99/x - Step 3: Cross multiply
90,912,431.03x = 125,428,035.26 × 51,744,407.99 - Step 4: Simplify right side
90,912,431.03x = 6,490,199,429,379,767 - Step 5: Solve for x
x = 6,490,199,429,379,767/90,912,431.03 - Step 6: Final answer
x = 71,389,570.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.