Finding the Fourth Proportional to 99,524,958.80, 149,287,438.20 and 56,478,237.80
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Solution
The fourth proportional to 99,524,958.80, 149,287,438.20 and 56,478,237.80 is: 84,717,356.70
Step by Step Solution
- Step 1: Write the proportion equation
99,524,958.80 : 149,287,438.20 = 56,478,237.80 : x - Step 2: Convert to fraction form
99,524,958.80/149,287,438.20 = 56,478,237.80/x - Step 3: Cross multiply
99,524,958.80x = 149,287,438.20 × 56,478,237.80 - Step 4: Simplify right side
99,524,958.80x = 8,431,491,435,212,403 - Step 5: Solve for x
x = 8,431,491,435,212,403/99,524,958.80 - Step 6: Final answer
x = 84,717,356.70
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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.