Finding the Fourth Proportional to 71,901,935.28, 107,837,247.70 and 19,378,380.87
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Solution
The fourth proportional to 71,901,935.28, 107,837,247.70 and 19,378,380.87 is: 29,063,352.05
Step by Step Solution
- Step 1: Write the proportion equation
71,901,935.28 : 107,837,247.70 = 19,378,380.87 : x - Step 2: Convert to fraction form
71,901,935.28/107,837,247.70 = 19,378,380.87/x - Step 3: Cross multiply
71,901,935.28x = 107,837,247.70 × 19,378,380.87 - Step 4: Simplify right side
71,901,935.28x = 2,089,711,257,927,354.50 - Step 5: Solve for x
x = 2,089,711,257,927,354.50/71,901,935.28 - Step 6: Final answer
x = 29,063,352.05
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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.