Finding the Fourth Proportional to 90,961,358.77, 125,526,675.11 and 51,806,778.80
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Solution
The fourth proportional to 90,961,358.77, 125,526,675.11 and 51,806,778.80 is: 71,493,354.75
Step by Step Solution
- Step 1: Write the proportion equation
90,961,358.77 : 125,526,675.11 = 51,806,778.80 : x - Step 2: Convert to fraction form
90,961,358.77/125,526,675.11 = 51,806,778.80/x - Step 3: Cross multiply
90,961,358.77x = 125,526,675.11 × 51,806,778.80 - Step 4: Simplify right side
90,961,358.77x = 6,503,132,690,978,019 - Step 5: Solve for x
x = 6,503,132,690,978,019/90,961,358.77 - Step 6: Final answer
x = 71,493,354.75
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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.