Finding the Fourth Proportional to 71,218,367.70, 106,827,551.55 and 66,440,793.30
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Solution
The fourth proportional to 71,218,367.70, 106,827,551.55 and 66,440,793.30 is: 99,661,189.95
Step by Step Solution
- Step 1: Write the proportion equation
71,218,367.70 : 106,827,551.55 = 66,440,793.30 : x - Step 2: Convert to fraction form
71,218,367.70/106,827,551.55 = 66,440,793.30/x - Step 3: Cross multiply
71,218,367.70x = 106,827,551.55 × 66,440,793.30 - Step 4: Simplify right side
71,218,367.70x = 7,097,707,271,278,644 - Step 5: Solve for x
x = 7,097,707,271,278,644/71,218,367.70 - Step 6: Final answer
x = 99,661,189.95
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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.